I sort of laugh at the marketing Armalite is doing with these guns, going on and on about how "innovative" they are. The CZ75 was hardly innovative even in 1975 - it was just a good combination of existing features.
As far as waiting for them to establish a track record, that's always a wise idea. However, if you wait too long, you may end up like a lot of people who waited for the Croatian Sensation (HS2000). Springfield ended up buying the rights to it, changing the rollmark to "XD," and hiking the price $200.