My fit issue with them is that, I was not impressed with their Computer Science Program at all. I'd like to do CS vs. Electrical/Computer Engineering (ECE) because I am not interested in Electrical Engineering at all, though PU's ECE program was very impressive.
Have you looked here? Department of Computer Science
By your junior year, you get to choose among 9 different tracks. GT has 8 different tracks. There is not complete overlap. There are certainly areas that GT has that Purdue is weak in and probably vice versa.
I'm not sure what specifically you are not impressed with. They have co-op too by the way.
Frankly, this seems like a pretty good department as long as the "tracks" they have interest you.
I'd like to better understand what you don't like.