Just checked my log book and it took me 60hrs including the qxc and gft from never having flown before.
I started in November and passed in May and had a lesson a day booked, lost about 70% of these due the weather, I reckon if you learn in the summer or a better climate, you will learn faster.
Some guy's though, are only booking a lesson a week and it seems to take them ages to learn, I suspect a lot give up on the way if they don't see any progress, I found the more you do it, the easier it gets and then one day, without you realising, you can fly it, well sort of!
My only tip would be to make sure you can afford to do it in as short a space of time as possible.