I think it is hard to say that these are amazing - they do the job, are comfortable and don't bunch up or leak.
The price is ok and I like to use them at night as they don't feel too bulky and they don't slide around, so there are no nasty surprises in the morning.
I haven't ever had any issues when using these but I do tend to choose other brands over these just because they are cheaper.
Ultra thin like it says, feels like nothing when worn and with the wings it helps to keep it in place. Absorption is also great, and the length & size of the pad is great for overnight wear. I also love the thick, standard sized Libra Goodnight pads for overnight wear too and the packaging is sooo cool!
Tips: They always go for sale real cheap at Countdown or Pak'n Save quite often for $4-$5 so look for out when you pop into the supermarket weekly and grab them when they are on sale - including the Original/Normal flow Libra pads and stock up if needed :)