I'd always recommend posting your novel on multiple platforms, even if the platform in question isn't too friendly. I'd say RR is more strict than here since readers over there are meticulous about what they read and tbh that's not a bad thing either. Their feedback is just as valuable because they'll either tell you what wrong straight to your face with no punches pulled, or at worse make a small scene.
People that hated my story told me straight up what they didn't like about it, and I absolutely respect them for it. Usually they'll add what they did like too. Not everything is for everyone, and people will be vocal mostly about what they hate even if it's something out of your control. Accepting this makes alot of things easier.
RR is overall friendly and I think it gets its 'bad' reputation from people that can't handle some criticism, although, just like here, expect those rouge 1 star reviews and random 1 stars depending on your genre. Something like GB has gotten me quite a bit there, but it's easily out shadowed by its lovely members.
Ultimately, no harm in posting on RR. Just expect a hard to navigate UI and quirks that make it a bit annoying to handle, but by nowhere near as bad as other sites. For reference, it's similar to SH but lacking in some areas. Something like Honey Feed lacks almost everything from both sites. And don't get me started on Tapas.
Hitting trending or similar over there is extraordinarily hard from what I know too, but if you're just looking to spread your story then what are you waiting for?
Truth be told however, nothing's better than Scribble Hub. Scribble Hub is by far the best place.