I saw it on Thomann a while back and liked the idea of it, but I was a bit scared by the Xvive name. However I thought "why not? its Christmas" the other day and ponied up for one.
The pedal is very affordable and sturdily build. Its fully chromatic, not all these cheap tuners are, and its sufficiently precise and responsive. The display is bright and colourful and it would be fine to use on stage.
Obviously, the big thing is the internal rechargeable battery, which I think is going to be a convenience godsend over the coming months/years.