My previous boss was brilliant too when I trained.
4 days a week is plenty, you'll never do 7 days a week in my opinion anyway. Everyone needs a break here and there- not to mention I'm sure the weather in the UK wouldn't allow that.
I use to have the school call me when a slot opened up, and I'd leave work at short notice.
If you flew a 2 hr lesson everyday you'd have finished the 25 hr CPL course in 12 days, but I don't think any school in the UK would be able to focus that much resources onto one student (perhaps I'm wrong) - and you'd be frazzled by the end of it.