First I have to caveat that I have the suspension set pretty stiff on both bikes. Most folks might ride my bikes and say "why have suspension if you don't use it?" Well its stiff on both but I've been riding that way on the theory that running close to max tire pressure and with stiff suspension will increase my efficiency (thus optimizing battery range). For the comparison between the two: I have the BodyFloat set the same between the two bikes (actually three bikes with my human powered bike). The front forks are set with similar air pressure (about 90 lbs) but I haven't taken time to tune the rebound identically on the two bikes. For starters on the Haibike, I set the rebound right in the middle. The R&M, off the top of my head, I don't recall where I landed after experimentation. The forks are both Suntour but different models. On both, I'm using only between 1/3rd to 1/2 of available travel. So with that background, I'd say right now the Haibike is smoothing things out a bit better but it isn't dramatically different. I was under the impression that the longer wheel base of the R&M would provide overall better comfort but it doesn't necessarily feel that way now they way I have things tuned. I've been running the same or similar tire pressure on the two bikes (same tires). I'm not sure what difference rim size makes but the R&M I think has 40 mm rims and the Haibike 35. I thought it odd they would be different for the same tire and it seems it could give the tire a slightly different profile but it isn't really noticeable by looking at the two side by side. I'm not sure how this impacts the ride. I do feel like the Haibike is more maneuverable for avoiding holes and debris. I feel a bit more stable on higher speed turns with the R&M. Probably a long non-answer for you but those have been my impressions so far. I wouldn't say one bike is head and shoulders over the other in comfort.