I really enjoy going to the Houston Zoo because I ...

I really enjoy going to the Houston Zoo because I tend to take trips to Houston for various events, and it's a nice place to spend the day in case you're waiting until the evening for the event to start.

I don't really have any complaints, other than the fact that it can get really packed with people, but I think that's more of a personal preference. The exhibits are usually very well kempt and the animals lively.