I already test London distortion and Texas overdrive
London - great Marshall modern hi-gain tone . If you love Crunchbox or Emma Reeza
you will love it. I like it more than that two pedals
Texas - If you looking for Tube screamer sound but want more gain more tone you will like it. But for me I want a pedal that can be set two stage of gain like Fulldrive2. It can't.
So I pass a Texas overdrive but for London if I want somethings for marshall hi-gain tone or I bored my Metal muff. I will buy it one.