I struggled with "traditional" breast pads when feeding my first baby and thought I'd treat myself to a set of these when daughter #2 came along. For me, they are great. I have been using Lilypadz for over 6 months now and no thrush problems etc. I agree with comments in another review that they can be a bit sweaty in very hot weather, but if washed & well rinsed every day they are fine and I've had no irritation despite v. sensitive skin. I "milk" very heavily and am quite "well endowed" so it's WONDERFUL to sleep without a bra/pads and not end up in a big puddle! Also, because they work via slight pressure on the nipple, after a couple of weeks I found I wasn't producing nearly so much excess milk - really helped to regulate my supply. And not having lumpy, clearly visible breast pads is great when out, esp as these mean no nipple show through in any of my tops!
Now the down side. After 2 months they really have "had it" and you'll need a new set - quite pricey in the long run! You know when you need new ones as the old ones do allow a "puddle" to form and they tend to drop off when worn bra-less. I find that air drying/leaving off reduces stickiness - best to use hairdryer and slap back on! I buy new well in advance so I'm never without an "operational" set.
Overall, then, a winner when it comes to feeling your body is yours again, so a great morale booster esp if you're wanting to reclaim your body, but an expensive option and they don't last long.