I was at 1.8 Meg last month.
I like the Fujitsu also but the first unit I got is for my master bed room.
The Gree system has a Mitsubishi compressor.
Gree is crazy big. From there web site
“currently 200,000,000 Gree air conditioner customers spanning the globe”
Here this will give all the info you want and more.
This is a Gov test between Fujitsu 12RLS and Mitsubishi
http://www.nrel.gov/docs/fy11osti/52175.pdf