I haven't used it yet, but from a first impression, it seems like a good pair of pliers. It is sturdy, heavy, has a strong grip to properly insert and hold the electrode steady, and the material used for construction appears to be of good quality (at least it seems so to the touch). It only has one hole for inserting the electrode and it is not one of those with teeth that wear out over time and can't hold the electrode in place.

UPDATE --> In the end, after some time, it still holds up and hasn't presented the slightest problem. Professional! Recommended!