I've been told the flamingo was recently renovated, and it showed in the rooms. The floors were nice, the beds comfortable, and the view of Vegas was probably the best part. I didn't visit the casino much, but it didn't seem like anything special.
There were a few annoying things during our stay. They would only give us two room keys for four people, and coordinating between people with different agendas can be frustrating. We requested extra blankets for our room, and were told there were none available. That seems slightly ridiculous for a hotel of this size.