I have been using huggies since day dot with my DS and I love them :)
New born size is fantastic it has a wetness indicator that is brilliant for first time mums and dads, DS did wet through these a couple of times however I believe that was because of operator error rather than a fault with the nappy.
Infant size: brilliant also and this is the stage where you start going into boys and girls nappies, DS did we through a couple of times again over night but again I think it was operator error, oh and yep DH didn't make sure DS was facing south Lol
Crawler size: now we have the hang of the nappies, no leakages etc, the only issue with this size is you can only buy them in boxes (I think it's this size) they don't come in smaller packets etc
Toddler: we are still in them :) still road testing but they are holding up well :), DS puts them through their paces and hasn't hurt his bottom yet when falling on it so they have enough padding but are still quite thin.
The nappies don't seem to be bulky and the only time DS has had nappy rash was when he was teething and not because of the nappies. I love the Huggins website too, there are some great compitions and give a ways.