Well, I don't know what you consider reasonable as everyone's budget is different but...
My husband had a conference last week at the Renaissance across the street from Sea World. I tagged along and we spent four nights there before moving to Disney property.
The hotel is REALLY clean. I was impressed by that. It's also right across the street from the main gates of Sea World which is REALLY convenient...you just walk on over. No driving, no parking, no hassle. Come and go as you like between park and hotel in a matter of minutes.
It's a full service hotel with restaurant, sushi bar, cocktail lounge, starbucks, pool, tennis courts. Does a lot of conference business so very much a business hotel also.
Rooms are very big(we had a king and full size sofa in our standard room).
All that said we were paying conference rate of $179 which I thought WAS overpriced for the property. I've seen in the reviews on trip advisor though that leisure travels have booked this property as low as $99 on discount sites. At that rate it's a screaming deal and a really great location for visiting Sea World.