Just received it. Performed with it in a few gigs already.
It is a very nicely built device. Sound is great for both acoustic and electric guitars. Does the job.
Although, I know this is probably done on purpose. But it could come with two batteries instead of one. Since it only works with branded rechargeable batteries, it could be TWO of them in the box, not there's only one. Or maybe Thomann could do a bundle with a bag and two additional batteries. Because they add a recharging device, which is great and it can charge two batteries at the same time, but you need to order extra batterie.
In my personal experience, you must always have spare batteries, because things tend to brake, don't work and etc. And if you battery dies out of the blue, you are done with the gig. So having few extra is a must. So since these are not ordinary AA batteries, and you can only find them on Thomann (At least I couldn't find it anywhere else). It would be nice to have this bundle compiled.
Anyway, besides that, the product is great. And you can always order extra rechargeable batteries if you need them. Recommended!