It was uncomfortable to use and felt cheap and broke a lot of ball about 5 out of 10 if the a5 is basically the same I will be avoiding that
For comfort move on to something other than the A5
Cheap feel - Its similar enough to the A5. So you may feel the same with the A5, unless it was the feel of the feedneck. As its a flip open feedneck it can be wobbly which should be resolved by tightnening.
If breaks were at the bolt / feedneck then this can be firing faster then the feed as neither the US5 or A5 have eyes. A force feed would resolve that, or slower firing. With the A5 you won't get these as the cyclone force feeds & has the ball ready for the bolt.
Idealy though I would still say move on to something else, get as much hands on to other peoples guns or try to get to a shop or stall at an event.