I did my PPL in the Warrior but then moved to the 152 for hour building. At first it was a struggle to 'step down' into the cramped 2 seater but soon got used to it and now enjoy flying the 152. You don't really need a high tech a/c with all the mod cons for hour building. I bought a block of hours which worked out at £75 p/h. Personally I would save as much money hour building and put it towards the CPL/IR/ME.
Cheers,
CapCon