Can't speak from personal experience, but I saw 2 economy racks at AP's booth at Tinley. They were MUCH better in person than the picture they show on the website. After seeing them and talking with AP's rep about them, I'd have no hesitation getting one in the future.

As Deborah said though, you just have to make sure your room doesn't get too cool as the economy racks aren't as well insulated as the regular enclosed rack style. Other than that, they should be just as functional - and if you provide 2 hides, the snakes should be ok as far as security too.