First, all the features and controls work fine: bass/treble knobs, reverb-chorus-delay effects, volume, on/off powering, charge port, aux entry, headphones out, Bluetooth activation, and the 6.35mm jack locks firmly.
With these basic checks out of the way, how is the tone? Clearer and bassier than expected for such compact loudspeakers and amp frame. Loudness is fine, not too much for evening practice, not too weak to fill a room.
The assembly is neat without any gaps or unevenness anywhere, and the knobs turn smoothly and not so easily that they change by accident just brushing them. The diodes are bright and clearly seen in daylight. All the effects sound pretty, but the chorus is its forte in my opinion, they could squeeze such a quality tone in such a tiny box, that's awesome.
The delay does not do the ping-pong sound of lesser circuits, and the reverbs are just natural. My only wish is they used the whole width of the frame for the knobs, so they could be a little more separated, and a little larger. But the ergonomics are quitte usable as is, so this only a minor point.
Users with small fingers won't bother. So, all in all a high quality sound box, and the price is very moderate, the overall value is high. The skin is grippy and makes the box easy to handle, plus the feet are rubber, and won't scratch a table. It is also heavy enough to not move by just jiggling the cable, and to avoid distortion by vibration of the frame.
The feel of the assembly is solid and tight. The charging cable works, locks tightly on both sides, the notice is brief and clear, and that wraps up this review.