Hiya,
Spent the whole of November at Naples doing my JAA PPL.
The experience was very enjoyable, good instructors and a pleasant learning atmosphere.
What the other people have said is spot on in regards to ATC delays - Minimal. I think the longest I had to wait was 5 mins and that was due to a global express taking off in front of me

.
Wake turbulance allowance etc.
To answer your question on the budget, I did 53 hours flying, 5 of that were for my night qualification. I had no hours when I went out there. On the day I left I had 12 cents left on my account so there estimation on costs was spot on.
I would have no hesitation in recommending Naples Air Center to anyone.
If you have any further questions drop me a private message
All I am waiting for now is the CAA to issue my License.