like: pattern matrix, tracker interface, pattern effects, meta devices, its very solid…
dislike: sometimes I want a more visual feedback (waveforms in the pattern), the automation is good, but the automation in a classic arranger feels better.
I work very fast in Renoise, but some things are better in, for example, Ableton Live (audio recording, sound design), Live is very fast for testing ideas. The instruments and effects in Live are better, but… Live is much more expensive.