This is a great item. Easy to operate and great distance for a wireless system.
The sound quality does drop slightly compared to plugging direct into the amp, this is like all wireless systems. You can run up to eight guitars with this system, but you will need additional body packs to do this. I also use an ABY pedal on top of the amp. This way both guitars can go into the same amp and you just switch between the channel you want to use.
My only gripe is that the antennas are at the back. If you place it in a rack (which is where its designed to go) there can be signal loss. On the front of the rack plate there are two pre drilled holes to place the antennas onto the front, but you need an extension kit, another 20.00 Euro to use this option (well worth it) but really they should come with the item in the first place. This will drastically improve the signal, as the antenna has line of sight with the body pack. It will eliminate noise.
Overall it’s a very good item, good value for money.