I was going to try it out but the play store says it's incompatible with my Nexus 10 running Lollipop.
The requirements (for Word) say...
• Android tablet with screen size larger than or equal to 7 inches
• OS version: KitKat (4.4.X)
So I was thinking it didn't support Lollipop,... but from the AC above that doesn't seem to be the case