I really like it. It can also be use to create 2D games, kinda like Unity workflow before the official 2D built in
Already talked to lubos on mobile services (admob, chartboost, google play games and gamecenter and etc) , not sure when will be the timeline or eta.
One strong key point for Armory
-Blender (If you dont like blender, this is probably not for you)
-PBR metal roughness workflow (it has its own PBR node)
-Lubos is working with Blender 2.8 EEVEE +Armory also
-Using haxe (Static programming languange). Personally any dynamic type programming (Lua and etc) will probably be a bit problematic when the project is starting to grow bigger. (It is just my opinion)
-HTML5 export runtime is small , I think less than 1 MB ?
-Android example is just 2MB apk released size (compiled with android studio)
-It will spit out C++ project for platforms except html5 ?
The cons are
-Still new
-Expect alot of breaking stuff happens untill it reaches stable
-Documents and tutorial a bit minimal