Took a while to get the hang of it, but once you're up and running it's good fun. A little bit perplexed about turning techies to hazmats though - mine are all level 9, but still haven't become hazmats?
Once the spacebar triangle is in play (for those of us that don't have any friends... har har) don't bother with that screen at all until a bar comes along the bottom, which happens surprisingly infrequently.