We rented from Blue Chip for our stay in Vegas.
They were ok, but I wouldn't do it again.
Housekeeping was really lax about their job. The room was pretty filthy. The couch and carpets had horrible smells and the bathroom floors were stained, and tub looked like it was never scrubbed.
Also, when we checked in, there were empty Kleenex boxes and rolls of toilet paper. the kitchen had a USED sponge in the sink and NO paper towels. SERIOUSLY??
I called and left several messages with Housekeeping and they still never came to fix the problems.
As for rates - Blue Chip does offer better rates than renting directly from the hotel. But for how filthy this is, it's not worth it.
Also, they don't provide cribs or anything to help make your trip with kids easier.
Next time, I would wait for great deals directly from the front desk, or rent from a small owner off VRBO.