As I have a solid state amp, I wanted to get an approximation of a tube sounds on a budget.
I bought this despite some negative reviews online in the hope that it would let me at least get in the vicinity of the ballpark of those tubey sounds.
Ideally it was the clean (ish) tube sound I was after and unfortunately that's not really what this pedal does best.
There certainly are a few clean sounds on the Tweed setting providing the drive setting is very low and it is very usable and certainly gives more of a tube character than I had with my amp alone but most of the settings on this pedal supply too much overdrive for what I wanted.
However those driven sounds are pretty good.
There are three setting for mic placement for each amp sound, and either a clean, high gain or hot pickup setting. All of these are pretty different and definitely add a tubey flavour to your solid state.
The British Amp is very like a Marshall, the Tweed is less like the Fender amp it's trying to be but still really good and the California amp setting is very 80s heavy rock. All are pretty good if you want a high gain, driven sound and there's lots of scope to mould your tone.
On the downside , this pedal is a bit unforgiving on your playing so I wouldn't recommend it if you have very microphonic or cheap sounding pickups or a very cheap sounding combo: it will amplify those cheap sounds.
If however you want to make your non-valve amp sound a bit more valve driven and your guitar and amp sound pretty sweet then this is definitely worth the low price.