Good move, wireless quality is great these days and it's nice to have a 'wander' at sound check time to get a feel for the acoustics of a venue. The guitarist and I often use them for rehearsals as well - we use a garage, so in summer we are free to move outside- nice.
I`m not an all-over the stage performer but it`s so nice being wireless and not having cables getting caught up around your feet. Plus when packing up you don`t get some twunt standing on your cables.
Every time I watch something go wrong on stage lately, it seems to be wireless related. It's a worry I can do without. I'v never pulled a cable out in my life and lets just say I'm far from stationary on stage!
