I agree entirely with Ronin's description of sequencers. I use XAOC Tirana II as a simple utility sequencer. Rene2 as an "immediate" sequencer, and I just using NerdSeq as a more "structured" sequencer. They have very different strengths, and it is not a problem to use all of them together.

Tirana II is excellent for creating simple gates and CV changes during a patch. I use Rene2 for improvisation and melodies. With the knobs, buttons, and snakes, I find it very immediate and inspiring. I use NerdSeq for more fundamental building blocks of a song: rhythms, melodies, samples. It is less immediate and requires some planning and a more structured approach.

Very different machines. It comes down to taste and workflow.