I use a Digitone for sequencing my eurorack. It works solidly. Initially I was using a CV.OCD and now I use a Yarns module, simply because I prefer to have it all in one case. Both worked equally well.
The OCD will give you extra gates/triggers taken from MIDI clock. Personally, I use a Pamela’s New Workout module clocked via din/sync from the Digitone.
As RobertSyrett said, polyphonic patches is not modular’s strong point. I think both OCD and Yarns can be configured to separate out multiple notes on one midi channel. However, I always have mine set to be 4 cv/gate monophonic outputs on separate midi channels, triggered by the 4 midi tracks on the Digitone.
I also fractionally prefer the MIDI sequencing with the Digitakt for the same reasons as RobertSyrett. The extra tracks open up more possibilities for sequencing, even if still I’m only using 4 midi channels.