Stayed in Executive room at the top floor. Really ghetto feeling, elevator repairs going on, paper thin walls so I hear my neighbor showering next door at 6am, and the room cleaner NEVER knocks, just opens the door while I'm still sleeping. Happened to me twice. What's so hard about knocking before entering someone's room? Really bad privacy breach.
Also people smoke in the hallways and the secondhand smoke seeps into my room... room smells of cigarettes. Guess there aren't nonsmoking rooms in Vegas?
Only redeemable quality is the location, near several big clubs if you're into that. But I'd recommend Mirage over Flamingo.