I've been using this od on my rehersal board for about two months and im really satisfied.
The boostfunction is extremely useful and really loud!
I've kicked it on in front of a silverface deluxe reverb and it really screams. The boost doesn't overdrive in front of a clean amp instead it makes loud, really really loud. But infront of a cranked marshallstyle it's just enough to go from a rythm od sound to a good angus style lead.
The overdrive side of the pedal is very similar to a ts 9. It has some classic cutting mids and cuts trough a mix really well. It's not a very gainy pedal but works well for styles like jazzfusion, blues or classic rock.