Hi,
I'm currently on 16 hours on the PPL course and i've doing two hours one week and then one the next, mainly to consolidate what i've learnt and Ive found it's easier that way.
I agree with an earlier posting about the Solo, the more hours the better leading up to it, my solo was cancelled 3 weeks in a row due to high gusting crosswinds.....but now I feel more comfortable doing them, and when the Solo did come I was ready.
Hope the course goes well for you, happy landings.