Syncing to midi clock is of course fine. Works perfectly.
I actually like the sequencer. But I like to make sounds evolving on their own, in the sound design process, rather than automate things into the sequencer. I use the fx strips live in stead of recording it into the sequencer, which is where things become a bit quirky anyway. The only thing I do miss is Polymeters amongst other things.
But all in all, I don't think the sequencer is bad. The rest of the T more than makes up for it.