well we just picked up our P&T Dash yesterday! so i guess i dont have a great deal of experience, but on first use i seems pretty good! i am used to the handling of a bugaboo though, so have been spoilt and need to learn how to use a 3 wheel pram.

pros: easy to assemble, easy to use the brake (on the handlebar), easy to recline (although a *bit* tricky to zip up if DD is in the seat), lightweight (for a double) and easy to steer and throw around, also not so long as other double prams (the Dash is quite a compact design), nice and narrow.
cons: isnt my bugaboo , being a 3 wheeler can be a bit awkward to steer (but i think with practice i'll get used to it), storage when the toddler seat is fitted at the back is compromised. everything but the pram itself is an optional extra and this can add up (say if you want to get the storm cover, sun cover, cocoon etc). so i HIGHLY recommend checking out what other doubles offer as their base range and compare from there ITMS.

HTH!