The last batch i bought was £16.99 for a 5 kilo vacuum sealed pack. It was 50p or £1 more for a big plstic tub - but since i stick them in bags and freeze i may as well save the cash.
There were 24 breasts in my pack and on average they were 200g each. I tend to put 4 together in a freezer bag and whack them in the chest freezer out in my shed.
The quality is absolutely fine. They are no cornfed chicken breast by any means - but they are comparable to all other non-speciality breasts i have had.
We did try a big 10kg box of frozen chicken breasts from Makro a few months back but they were full of added water/salt etc. You could tell straight away when you cooked them how much fluid they lost and how much smalle they were after cooking.
Honestly if you have a Makro or a Bookers available nearby i would suggest spending a score and testing. I've done a back to back test with chicken from the supermarket, farmers market, and a quality local butcher and if there was a difference it was imperceptible to me
I'm cooking up another four in a while so i'll see if i can get a decent photo or two in case you can spot something i can't.
Lovely with a bit of salt/pepper & either some herbs or some spices of sorts.