Going with Boothe. Looks like a good deal. SEER 16, HSPF 9. 2 cycle. Tech actually recommended a lower tonnage than we had.
And I like the warranty stuff. Pretty much free labor and parts for about as long as I plan to live here, more or less.
Looks like you got the same unit I got from them two years ago (depending on tonnage). Deciding factor for me was that the design was basically a decade old so it was much less likely to be a lemon or need multiple tuneups in the first year like a state of the art unit might. Actually my 12 year old unit that was being replaced was more efficient, but it was a super-Cadillac back when it was put in.
I was on the fence about going geothermal/ground source but I didn't want to invest the extra funds when retirement was near and there was a good chance I might have been moving away.
I like Boothe's, they are a pretty solid bunch. But I do feel they are pricing their units at a premium. The Amana system they sold me (which is admittedly a lower tier HVAC manufacturer) was more expensive than a similarly spec'd Trane from one of the other larger local HVAC companies. Again, I wasn't worried (10 year old design that I could look up performance data on) because their service and techs are good, but I wish I had shopped around a bit more before I pulled the trigger.