Yes it sounds excellent, but completely different to my other one; which is good i guess. Its much more 'punchy', aggressive, with what seems to be a shorter envelope. The way the knobs interact is very different too. Sounds much more early aphex than squelchy, rubbery hardfloor like my 'the beast' one does.
Also, the difference in level between resonance on and off is much less than the beast one, which fluctuates loads in terms of level, but when all knobs are down the substyler one is much quieter. My only minor issue is that TM3 doesnt turn up quite as high as id like - id like a little more top end filter cutoff. Prob ways around it. But either way, sounding very good.
I only got an hour or so to play so not done any detailed comparisons, the one thing ive not tried is USB so fingers crossed. But if successful i should be able to copy patterns and directly compare. Or just program the same in each.