I am a big fan of RI. In the middle of an 8 night stay at RI LAS Convention Center now.
I actually prefer the older ones that are like a little village of houses with 8 or so units per house. Most of them have a full kitchen with oven.
I like the extra space I get vs a hotel room and the real fridge with a real freezer.
I also find that in general the room rates are high but the category low. Coupled with the low 5 pts per $ given for revenue stays, I also find them a very good place to redeem points and certs. I also find the 1 BR is usually $10 to $20 higher than an efficiency but the same number of points.
I used the grocery shopping service for the first time this trip since I took the shuttle from the airport and have no car. I did not tip the maintenance guy who brought me the groceries, maybe I should have. The stuff they bought at Vons was pretty much what I wanted although I would not have bought organic carrots and celery.