The keyboard is quiet and comfortable. As some comments mention, the buttons are initially very soft, without much feedback, but they become more responsive with use. The mouse is excellent, with an infinite scroll wheel and side buttons for horizontal scrolling, and it supports gestures with an extra button on the left thumb. Unfortunately, I often accidentally press it.

They connect very easily to any Bluetooth device (laptop, TV, mobile) and to a computer via the Unified USB receiver. They can be connected to different systems at any time, they are not tied to one. I use them on Linux and Windows. In Linux, the gestures do not work because there is no driver (at least not official).

The only problem so far is that sometimes the keyboard disconnects from the USB (it has not happened to me with Bluetooth). The solution is to switch the mouse to a Bluetooth device (simply by pressing the selector on top), so that it disconnects from the USB. Then the keyboard connects immediately, I reconnect the mouse, and everything works fine. It is annoying and I have noticed it happening during heavy use (when I type a lot), but at least there is a temporary solution. I hope it will be fixed with an update (the keyboard/mouse/USB receiver can be updated through the program from Windows or Mac).

It would be helpful if it could connect to more than 3 devices. With my personal PC, laptop, work laptop, TV, mobile, etc., the 3 devices fill up quickly.

I bought it because recently my setup became particularly demanding. Specifically, with work exclusively from home, I have two corporate laptops and my personal desktop. For this reason, I needed something that could connect to three different devices without going through the KVM process. Generally, after 4 months of use, I am satisfied, although it took some getting used to the layout because it is a bit "narrower" and more condensed than what I was used to. However, no problem, I have not noticed any disconnections or freezes that others have reported, I have two fewer cables in my office, and I am doing my work just fine. The keyboard feels good for work, as does the mouse. I have done some gaming (although that is not its intended purpose) and I have not noticed any noticeable lag or anything like that. I don't use the mouse for gaming, I prefer the old reliable MS Intellimouse from the 20-year-old era that still works. Overall, a useful purchase for me, we just have to see how it holds up over time.

As far as construction quality goes, they are very satisfactory for their price. The battery lasts a long time on both devices. Personally, I prefer the fact that they come with extra batteries, as the first thing that usually breaks on similar peripherals is the mouse wheel or the battery.

The feel of the mouse and the scroll wheel is very good, and the size is ideal for me. It is a smaller mxMaster 2s without the thumb wheel and made with cheaper materials! Despite being quite worn out, the only damage the mouse has is that the matte coating where the thumb and index finger rest has worn off, making it shinier, but it is only a cosmetic issue.

The only thing that might be missing on the keyboard is backlighting. Also, although it is convenient, I would like the front wrist rest to be removable. Some people might find it bothersome or not have enough space on their desk. Additionally, the wrist rest collects small dust particles in its grooves and is difficult to clean.

For me, what is worth more in this package and is not mentioned in many reviews is the software:
- You can control up to 3 devices and easily switch between the mouse and keyboard simultaneously just by moving the mouse to the edge of the screen! It gives you the feeling that you are using a single machine with multiple screens. You can also copy files (I haven't tested this) or text (works very well) between them! The basic requirement is that the devices are connected to the same local network. (Logitech Flow)
- The options the software offers for mouse and keyboard collaboration are very useful if someone is willing to invest some time to customize it. By pressing a key on the keyboard, you can change the mouse shortcuts (Logitech DuoLink)

I have had the keyboard since it was released in August 2017.

In terms of advantages, it types quickly, has ideal travel for the average user, and is quite comfortable for extended use. I can type text on my Android phone and it connects instantly, but there are no instructions on how to use the Bluetooth keyboard with each app. The line and enter keys do not work the same way in every application, so you have to search (SMS, WhatsApp, Viber, Messenger). The main thing is that the letters do not fade. Those who have old, expensive keyboard sets know.

In terms of disadvantages, after 3 months the keyboard is not as quiet, it does not have Greek (for those who want it), it does not have an LCD, one-touch shortcuts, and the wrist rest gathers quite a bit of dust. The num lock does not have an LED, it simply lights up/turns off on the screen. Anyone who wants a keyboard with deep travel should not choose this one.

In the 7 months that I have been using it, I had two issues.

The first was some input lag due to obstacles from my desktop tower. Unfortunately, Logitech's unifying receiver does not handle the signal well when there are obstacles. I experienced the same issue with the Logitech MK320 combo I had before, especially when the battery was low. The same issue occurred in the past with the beloved but problematic MX3200. I plugged it into the USB hub of the monitor and everything was fine. We're talking about a distance of just 80cm below a large desk (!).

The second issue was huge. The keyboard would miss the first key press when it came out of sleep mode. It was driving me crazy. It would miss the normal first press, but catch it a little later than normal. Fortunately, the issue was resolved about 2 months ago with one of the consecutive updates that the set receives.

Is it worth the money? For a non-backlit, non-quiet, LCD-less keyboard, it's so-so. It is of good quality and I prefer it over my alternatives in wireless Logitech and Microsoft models.

The mouse is a bit small for extended use, but it's okay. It has 3 side buttons (e.g. zoom, back, forward) plus the scroll wheel.