It isnt too bad for a quick fun game (although i doubt most games would take 40 minutes, then again there are some slow players out there), however, it seems that some armies get it a bit easier than others, for example, a nids army would be good for the model count, however they wouldnt be able to get any big bugs worthy of a fight. Armies such as deathwing cant be played, which is quite annoying, such restrictions can really make it difficult to select a proper army list.
I cant see me taking my army to uni (or school when it came out) and having a game in an empty classroom, but if u dont want to play a long game, or if u only have 400pts worth of 4ok, then go for it, its a bit of entertainment at least.
Adz