First impressions are that it sounds excellent, ive never had the ultra... Ive only got the B7k and B3k to compare it to so dont know if its supposed to be slightly different sounding 🤷♂️ i know the mid EQ points aren't matched with the ultra and B7k anyways.
This pedal definitely has a similar sound but is a bit different ... More smoother ssounding distortion (less high focus) Its not exactly like my B7k but overal decent for the price.
I think i prefer my B7k, but if it broke this would make the grade as a replacement 👍