I've visited them and they all look great - good facilities combined with a positive first impression of the staff. They said what I wanted to hear (loads of pilots needed blah blah blah....) and ticked all the boxes.
However I haven't gone there.
I decided to go the modular route because it is better for me. In short I researched all my options, not the easy options that had the best advertising budget/techniques.
Essentially there is sooooo much more than just CTC vs OAA. Look into every option. Someone I know from uni is at OAA. He's paying close to £100000 for his training. I'm paying much less than that, I'm doing flying I want to do (tailwheel + aerobatics), I've got a job at the same time in the industry and at the end, we're getting the same qualification!!!
In short, research, research, research. This website is useful with loads of threads and other advice.