My vote would be for an airfield outside of CTA (MMB or MEN).
Learn to fly first. You will be able to quickly learn CTA procedures later in your training.
The $$$ you spend should be on learn the basics, not paying for an operators high rents and landing fees (which is not the fault of the schools).
At least go and visit some other schools. (Can't see how being close to Tulla' helps!).
- Not being negative but if you ask a question you have to expect an answer!