Pros:
This is a very compact, easy to use unit. It's not feature heavy, but wireless units with numerous bells and whistles tend to cost several times this price.
I had no problems with the buffer that's built into the system altering my tone in a noticeable way.
The range is decent, and more than what most people will need. If you need more, you're playing big enough venues that you should already have a higher-end unit.
Cons:
It definitely cuts in and out during play. It tends to be brief, but it happens enough that I wouldn't want to gig with it.
The real dealbreaker for me, though, was that it stopped working after 3 months. I never left home with it, because I wouldn't play live with something that cuts in and out like this unit does. I live alone, so I know nothing happened to it. I used it one day, then put it away, and when I went back the next day to use it again, I couldn't get a signal. It's fully charged, lights flashing, transmitter / receiver are paired, but – no sound.
I've contacted Thomann; hopefully they can help.