they Distortion Factory is a contender for good pedals but in terms of user-friendly options & an overall good tone, the Uber Metal is still tops with me. it's one of the few pedals which sounds full with the level turned up. i find this not to be the case with many others, which sound compressed at higher settings.
many people will also think that the DF-7 is a intense distortion type- not quite. do give the pedal a try & listen closely to what it has to offer.