The installation is more important than brand. It needs done right or any brand will fail. Ask friends, coworkers, neighbors who they use and trust.
I sell mainly Armtrong(Lennox product) Rudd and American Standard, but I can get most anything. If you were closer I'd give you quote.
Most that I sell is 14 seer which was high efficiency not long ago. Bump above that you get into more components to fail and more out of pocket. It pays off eventually if you maintain it. Upper seer units require a TXV that's guaranteed to fail eventually.
Help me out. What's a TXV? American Standard is what we did on our upstairs unit a few years back, worked out great.