When running on power supply delivers good sound, but it is supposed to be a portable device. i'd give it an 8 without those issues

Sound
Crunch is the best . Distortion is emulated from the amp dist. so if you are after some heavy metal distortion sound, you'll be disappointed, Hovewer, works it very well for blues.

Features
A lot of effects for such small device. Chorus is very good. Gain (Drive) control works also very well If MP3 player/recorder would be integrated it would make it a perfect device for practising Chorus and reverb cannot be used together but this is very common in cheaper devices (one dsp)

Ease of Use
my 10 years old son is using it

Quality
There are two serious issues with this device: 1) When battery voltage drops (it actually happens very fast, since this thingy eats batteries), the sound gets noisy and distorted. Later on, a very unpleasant and loud feedback occurs (probably form noise). When connected to an external power supply, the sound is brilliant. This makes me think that this device actually needs higher voltage to operate properly e.g. 6 batteries instead of 4. 2) This is even more serious - if the battery is slightly bigger (they are never absolutely the same in size, but even < 1mm bigger makes the difference) the plastic case is slightly distorted and when the battery cover is closed, the device wont switch on. If you… read more remove the cover - it works! If someone from waves reads this - these are serious issues that are not acceptable not even in this price class. Probably the device was tested mainly by using a power supply but not enough with batteries. (I'm an electronic engineer)

Manufacturer Support
never dealt with them

The Wow Factor
It is 3 times cheaper than KORG Pandora...

Musical Background:
hobbyist

Musical Style:
blues read less