Bahn-Jeaux,
As has been mentioned before, the timing of your trip (should you opt to go that way) is important.
I went out to Florida at the beginning April for a three week package. I actually booked 4 weeks off work (I carried leave over from the previous year) just in case I was struggling, or the weather turned pants.
The weather was great and I didn't lose a single hour let alone a day, which allowed me to go from 0 hours to GFT pass in 14 days. That was ten years ago and in hindsight I wouldn't have done it any other way.
There are numerous arguements abound regarding where you learn and how you learn, I did what was right for me, and that is what counts.
PD