Absolutely loved wool with my DS (now 11), but echo everyone's concern re leaks with pre folds. I would worry about regular leaks with wool as you'll be lanolising far more often, which could be an off-putting faff.
Fitted are ideal though. We had disana tie ons, which dried in seconds and never leaked. I quite often see them free/insanely cheap/postage only if you are interested in giving them a go.
No idea why they are so unpopular (brilliant IMO) except they cause serious puzzlement in babysitters! Lol.
We used a combination of wool and pul as pul necessary for long car journeys (my DM was 4 h away at the time), and wool pants were v bulky back then. I have some lovely slim and him ones in ready for imminent arrival of ds2 though, and have pretty much given up car journeys of any length so planning much more wool use
Good luck x