no complaints on iolite but not rugged enough for me.........I tend to be rough with my junk and iolite is kinda fragil.........I know they hit well but worried about breaking it.......see alot of post on youtube about haveing to repair em all time and they have vids how to fix em without sending in.........think the main complaint ive seen is igniter moveing and cause it not to work............but seems like an easy fix..............glad ya like it....but try useing it in a movie theatre lol.......I love to be stoned and watch movie .....MFB is the tops for stealth and portability......so far.......and rugged..........instant on and off......unlike most...........and I hate those deals where you heat metal up with torch.........they work but takes lots of practice and burn sit out of ya if you dont let cool down several minutes............think all vapes have a trade off........just what ya like is where it counts...thats why there are so many of em and bongs and pipes we all like things differantly............not ragging iolite just think I would wind up breaking it ..........