Just an experience I'd like to share regarding wireless stuff.
A few months ago, I thought I'd go wireless so I bought the Samson Airline Guitar - Wireless System. When our bass player saw it he told me he's played countless gigs with guys who went wireless and dumped them later as it was very unreliable and you never know what is going to conk out. I should've listened to him. For the $320CND I paid for it, I thought it wasn't worth it. First no matter what adjustment I make I couldn't make it to sound "transparent". Then you gotta worry about the batteries on the transmitter. I used a generic battery in a gig and didn't even last me the whole first set. Worst part was the thing died on me in the middle of a solo.
Since then I've gone back to being "wired". I still have it though but have been contemplating on selling it or even trading it. Maybe for a Fulltone OCD? Anyone interested? I'm in Canada tho.