Why am I giving the Flamingo four stars?
Let's establish one thing first - this is not one of the nicer hotels on the strip. It can't compete with the likes of Wynn, Bellagio, Paris, etc.. It's not luxurious, and it's not trendy.
HOWEVER if you're looking for a decent hotel with a clean, safe room in a great location, Flamingo fits the bill. Change your expectations and you'll enjoy it. Your room will not have a flat screen TV or a big soaking tub. Now, I did notice that it seemed a little dingier than when I'd stayed here several years ago. Maybe they're sinking a lot of money into their "Go Rooms" which from the web site, remind me of rooms at some of the W Hotels I've stayed at. As a bonus, the nice front desk clerk gave us two upgraded rooms instead of the one regular room we though we were getting. Nice! I recommend the Flamingo if you're going with a group and don't plan to spend lots of time in your room.