This is a product that offers many things in a very contained price.
But I warn you, it doesn't sound like a real amp.
I'm not returning it, because I knew more or less what I was purchasing, but I must say that the YouTube channels reviews of this device have been unfortunately delusional.
This is not a good sounding guitar device, but a very practical tool to use everyday or when you travel.
The sounds are OK, the tuner works, the looper works, the effects are very basic and the speakers can't stand too much volume, but are enought for an indoor practice.
The overdrive/distorsion effect is not tweakable.
The effects worsen the latency of the basic DSP inside.
I'm not disappointed, but either I am happy. I wanted exactly this product (there's no one out there like it currently) and it's what I got.
Pros:
Portable
Tuner
Pedals (the only mini-amp that has them).
Practical
Easy to use (except with the ridiculous, unreadable screen).
Cons:
Tiny, micro, minuscule screen. You need a magnifying glass to read some parameters
Sound Lag, latency.
Cheap feeling. Some encoders are wobbly.
Unsecure smartphone handler. There's no locking mecanism, the legs just insert in their holes and that's it.
Crazy (unusable) drum patterns.