Well Juraj, I could agree with you that Corsair might have a bit cheaper materials and all but I think that it still is almost the best AIO system that you can buy currently. I made myself a casual pc for home use lately and I bought Antec 1250 with my i7 4770k and it is really nice. Looking great, quite sturdy and well made, but I would still replace it with Corsair H110 if I would do it again. Simply because you can switch the radiator fans on Corsair with some quiet ones (like Noctua) and have a whisper quiet operation, where Antec got the vents fixed.
A bit crappy picture, took it under low light conditions ;D