I have both. I prefer ACF better/consistent/smaller overall volume size and lip in espresso size. Not as much variability in larger tulip long black cups. However the Rockinghams are very sexy and have some nice colours. Just some variation/less consistency between cups in size and lip thickness. The advantage of the Rockinghams is that they can be purchased as single cups so you can mix and match colours. As far as I know Nuovo Point and ACF mostly come in batches of 6 in the same colour
Both are good though. People always comment when I have my mutli coloured red orange blue and brown cups on top of my machine.
Also I have dropped both from a height when filling my machine tank and NO BREAKAGES OR CHIPS. They seem fairly strong.