I have a lot of nice things to say about this place, starting with the painted blue sky with clouds on the ceiling. It lightens it up a bit, so it's not as dark and drab as a lot of casinos seem to be.
The restaurants in Paris Las Vegas are generally quite good. The rooms are attractive, clean, and fairly spacious. The monster Eiffel Tower drinks last forever.
In general, the vibe here is young and friendly. People are here to have a good time. Definitely one of the better (and yet reasonably-priced) places to stay.