Highly recommended, I'll give it a 9.
Stayed there last July 4th when we visited DC. Trip report with pics is here. We had a regular club room facing the atrium. Our room had two beds and a table area. Bathroom had a tv in it. Game room is nice, pools are awesome, with a hot tub. The atmosphere of the place is just nice, hard to explain.
http://www.pompano.net/~robvia/SeaWorld1.htm
The Renaissance Resort appears to cater to business people and weddings at night, which is why it's not talked about much on the boards. But it's one of Orlando's best kept secrets.
During holidays, they lower their rates, but most people don't know about this. For example, when we went last July 4th, the club level room rate was $129 per night.
The club level gets you the top floor, You have to insert your card in a special slot in the elevator to activate it. The club level also gets you free breakfast, and snacks for dinner. How does this work? They have a little business room on the top floor which is staffed. In the morning they have a continental breakfast spread (bagels, fruit, juice). At night they serve spinach rolls and snacks with soda. You can also buy beer and wine if you want. This room also has a big screen TV in it with couches to sit on.
Spending the extra money for the club level room is worth it.
We never ate in the restaurants, we always ate in the club room.
Don't worry about which view you get. The atrium rooms are better because you have a balcony you can step out onto. The rooms facing out are just windows, unless you get a suite. You can't really see the fireworks from the hotel, you'd rather see them at SeaWorld. So the idea of a Seaworld view is just a false hype. The club room (meaning the one where you get free food) faces SeaWorld anyway, so you could go there to see the fireworks if you wanted.
Walking back and forth across the street to SeaWorld is Da Bomb. You're going to enjoy your stay. Be sure to get the club level.