I recently decided to try an A2 after years of bagging zones and A5s. I grabbed one in 500 plastic with a small dome. This disc is much more overstable than any zone I've thrown, but is still more controllable than than a super beefy mid like a justice. I can get more forward push with this than a justice, but when it hooks up it gets to the ground fast and likes to skip. I like to release on hyzer (FH and BH) so I prefer a zone for most approaches, but the A2 is much more trustworthy in the wind.
In terms of feel, it's shallower and has a slightly wider rim compared to a zone or A5. It did have some sharp flashing that I trimmed with a razor before throwing, but once that was gone it feels good for both forehand and backhand grips. I bought mine in person, and the amount dome varied quite a bit from disc to disc, even within the same plastic types (except for the baseline plastics, which were all flat). I found one that was pretty flat, but some of the domier ones didn't feel nearly as comfortable in my forehand grip. Having seen how much they vary, I wouldn't order one online, but overall I'm happy with the A2 I got.