No personal experience but from memory of looking at the geometry it seemed to be short (reach) and that’s immediately put me off.
Price is pretty good but feel that they’re being usurped by better offerings elsewhere both in performance and value stakes. Not sure what the Dee dar does that the 45650b doesn’t?
I had a 45650b for a couple years by the way and have nothing against On One unlike a lot of folk (I have a 29 inbred winter bike) so I do like some of their stuff, just think this seems a strange offering IMHO