Except for battery life which I cannot estimate at this time (just got it), this guitar is great on all fronts.
First, the packing was awesome (not counting Thomann's extra layers), and it comes with a nice grey gigbag (that does seem somewhat thin but don't ask too much).
Second, the guitar itself is great: light for a strat type, smooth neck, no manufacturing issue that I coud see. Frets are really good for this price. As I have seen somewhere else in a review, the tuning heads are indeed cheap looking and feeling, but they do the job for now. Remained in tune after extended playing and overnight.
The blue colour I got is really great, a bit like the Fender 'Miami Blue' is lighter.
FInally, the core of the toy: the built-in effects. This is of course the reason I bought this in the first place. Honestly they sound good to me. Only small downside is the clean-reverb tone which seems murky compared to the 'effects off' tone (through a pedal in this case). But the heavy sounds really rock, I like it.
There is a serious volume boost with the effect knob engaged, you have to watch out for that.
You can plug headphones in directly, which is great (of course it only works with the effects engaged, not on the 'guitar only'). I also got the GWF4 for wireless footswitch control but I did not test it yet since this is a 'brand new guitar' review/impression.
I have only one thing to conclude: good buy, recommended for playing effects without the extra gear. Would buy again. May I get another colour ;)