This is a great pedal. It is designed around the BluesBreaker (transparent flat EQ curve) and can cover a lot of ground, with tons of gain on tap.
It offers 3 stages of saturation and 3 options for compression. That means that you can use it as a BB (low-gain and open), a medium drive (like a crunch channel), or even as a really heavy, compressed, modern drive.
The knobs are a bit confusing, Bass is actually low end, Treble is guitar treble (meaning high mids), and Presence is actual treble (but introduce kind of a sizzle). You add mids by turning all 3 down and adding volume.
One of my go-to foundation overdrives in general.