I recently threw off my chains and am free to roam wherever I want (within 60 feet or so). 
This means I can go anywhere in my house… grab a drink, let the dogs out, etc… without having to take off my instrument.
Best $40 I ever spent on any music gear.
Such devices would make Nikola Tesla proud!
Exactly, I once saw Buddy Guy in concert unroll what must’ve been at least a 100ft cable so he could run around the audience. This was around the same time guitar nerds started telling us 9V batteries sound better than AC adapters and long cables kill our tone. He sounded amazing because he is amazing. Moral of the story, when I sound bad, it’s not because my cable is too long.
Buddy Guy is fantastic. Great musician, showman and employer and inspiring force of Jimi Hendrix.
You can get special cables too 
I was given a wireless system a year or so ago to evaluate and it was nothing but a problem because of industrial machinery controller’s interference in the area we had the jam session. That is probably the reason for that channel button on the device.
So many things operate in the 2.4GHz band that interference is a concern for me.
Wireless phones, TV remotes, security camera systems, radio controllers and high wattage industrial machinery controllers, just to name a few.
So for me wired is the way. YMMV.
If you ever go wireless I would strongly advise to buy a device that uses the 5GHz band or the more expensive ones which can offer a range of frequencies.
In my experience 2.4GHz works just fine at home. For gigs see above 
New guy here as well. I bought a 20’ right/straight cable. I love the length because it gives me quite a bit of freedom in my practice space. Like the old Subaru commercial. “It’s better to have it and not need it, than to need it and not have it”.
I do however wish I had gone right/right. I leave my cord plugged in and I can see where the stress point will be in the cable sticking straight up from the amp. For now, I’m good but, I’ll buy another cable later.
One of my summer hobbies is flying RC aircraft, primarily DLG (Discus Launch Gliders). These typically operate on the 2.4GHz band but the transmitters use a frequency hopping system that changes frequencies constantly through the band to help alleviate the problem.
My Radiomaster TX16s transmitter also has a spectrum analyzer built into it that shows how busy the band is. Fortunately our flying site is a sod farm consisting of thousands of acres of open grass land and 2.4GHz frequency pollution is not much of a concern.
At the jam I mentioned, where we had an issue due to high powered industrial controllers, I had to stop playing after only 10 minutes of trying to use the wireless system. I just plugged into the PA with my 20 foot straight/rt. angled shielded cable and all was fine from then on. Live and learn. 