British Pedal Company Dumble Blackface Overdrive

Brilliant, very versatile.
The switch goes between a warm bluesy overdrive with a ton of clean boost if you need it (by backing off the gain and turning up the volume) to a heavily distorted overdrive
The tone control has a wide range going from a woolly to a bright, sharp sound and the dynamic knob is my favourite thing on this pedal.
It kind of saturates so you can sort of take it into fuzz/vintage territory.
I can't imagine anyone being disappointed with this, other than possibly spiky/punky ProCo Rat fans, it doesn't really do that, it's more a good old traditional-style overdrive (Tube Screamer-esque)