I've started to adopt wireless accessories, with mostly good results.
2 years ago I got a pair of cheap wireless headphones for my phone. The feature that drew me at the time was that they sit behind the neck instead of on top of your head, but it turned out they have great sound and great battery life. A year later, I bought another one, just to have, in case they stop making these particular ones.
Earlier this year, I got a more expensive pair of noise-canceling headphones for playing games and watching movies & tv on my pc. They're heavy and clunky and go over the top of the head. I couldn't stand ever wearing them while I'm out and about, but for gaming and watching movies at home they're pretty good. It's almost weird having the sound of whatever I'm watching not change while I'm moving around the room, or even to other rooms. I get the directionality of sound and I pick up background sounds that I never did while watching movies and shows with regular speakers. Unfortunately the battery life is less than spectacular, and the range isn't great, so they're not ideal for listening to music while I'm doing stuff around the house. If I go to the kitchen, the sound stutters, and if I go onto the back porch they're all but useless. It's not important, since I have no reason to use them on my back porch, but if I lived in a house rather than an apartment, I wouldn't be able to walk around listening to music with these.
Then a few weeks ago, I got a wireless mouse. Performance-wise, it seems fine. I don't play any competitive, multiplayer games, but I don't notice any difference from the wired mouse in single-player shooters like Fallout 4 and Prey. As with the gaming headphones, the battery charge doesn't seem awesome. I don't regret the purchase, but I can't really say it justified the extra cost, either. It hasn't been as useful as the two pairs of wireless headphones. A good wired mouse probably would've been fine, and cost less. It works just as well as a wired mouse, but other than not having a wire to manage, I guess I'm not sure what the point of these is.