Well I was issued it 2 weeks ago, having handed in my 82 ruck.
I have worn it with FFO and CBA, and personally have no problem with it. First time I wore it, on a BFT no less, I did experience some chafing from the hip belt, and found my tacvest had to be lifted up to wear said hipbelt. Now, no chafing whatsoever, but the tacvest is still pushed up somewhat.
I'm sure everyone will agree it is a definite improvement from the 82 POS. I've heard the arguement from Inf types that 81mm baseplates can't be carried with it, or any other specialist kit as can be carried on the 64, to which I reply the CTS ruck has borrowed ALOT from the british bergan, and if British infantry can carry milan firing posts with the bergan, why not with the CTS ruck???
I do not doubt other posters on this site who have had problems with this piece of kit, however, in my unit, I've definitely seen alot of young lads dismiss it as a 'POS', most probably because they've heard some of the old sweats (married to their 64's no doubt, and resistant to change) slag it off.
If anyone really thinks it's that bad, I challenge you to try the old british 'All Arms Bergan', or, Combat Bowling Ball Bag, which was issued to mech/non-inf up until a couple of years ago.
As you can see, it is literally a 80L purse in DPM.
HOWEVER, I do have some criticism of the new ruck: Instead of a 'lay-flat' (for lack of a better word) pocket on the lid, why not stitch it so that the zip is facing the side, and, fully packed, it forms a box on the lid. The lid pocket as it is now, should you pack it with anything and strap down the ruck, is impossible to get to or hold anything bulky. By comparison, both the british bergan and NI patrol pack have box type lids and can hold items as bulky as a 2QT canteen without comprimising lid-closing-capability.