RI's, at least most, have an actual separate bedroom and a full kitchen. SHS rooms usually have a half wall separating the bedroom area and the work space/couch & chair. There is usually one TV that straddles the two rooms and swivels. RI's have two TVs typically. SHS has a larger mini fridge and microwave. Both have free breakfast... I think, as others have said, RIs is a bit more extensive. RI's have apps and drinks in the evening; SHS does not.

I find SHS nicer in general... unless you really want a full kitchen or the evening drinks and snack. The extra space of an RI is a waste to me and you only earn 5 pts/$ compared to 10 for SHS. Just my opinion.

Hope this helps.