"3+2" smacks of marketing gimmickry.
A 5 axis toolpath can have all 5 axes in motion at the same time. This sounds like it produces 3 axis code and then when THAT is done, will allow some movement on the other two axes before the next 3 axis toolpath begins.
"cloud based" means you're at their mercy, period.
The machine looks really slick, but having 5 axes *capable* of being used is only part of the story.
I suspect once 5 axis machines become more mainstream, you'll see some open source guys hop on the bandwagon and create some usable 5 axis toolpath generators. Until then, true 5 axis is a rich man's game.
g.