I've been using a Zero G style for two years. No issues. It does have plastic threads so I'm careful when threading it onto my PSI gauge. Love the fact that regardless of how cool/cold it is out that it will fold up in the same water supply tote. Not so much with my blue hose.
One thing I did is add a 'Y' at the spigot when hooking up. The Zero G style seems to hold pressure longer so I release it with the other end on the 'Y'.
As far as water pressure inside the RV goes, it's the same with either style hose for me.
I'll never buy another blue style hose again.