The analog machines in the Rytm are a mixed bag for breakbeat. The kick is great, as you have lots of different machines to pick from. Dusty, silky and hard all sound sweet in breaks. I think the snare and clap could do with having some added machines, as right now you’re limited to an 808 type snare, 909 type snare or 909 type clap. The hihats and cymbals are solid, and the toms can be useful for little fills or basslines. I used nothing but analog machines on the rytm in this performance, if you want an idea of what the analog circuitry can sound like.
You can also stack the analog sounds with samples. That way you can layer the analog sound and a sampled drum hit. I only wish there was a way to cut out frequencies separately on the analog machine and the sample (both go through the same filter). I ended up using the Octatrack here to layer in some sliced up amens.
Ultimately for breakbeat it kind of depends. If you use lots of synthesized percussion in your breakbeat it may be worthwhile. If your breaks are more on the ‘sliced up drumsamples’ side of things, you’re much better off with an OT I think. Hope that helps!