I get the 1, which takes me about 20-25 minutes from the Archies end of Union St to the Science park, and the same coming back (apart from on Thursdays when the late-night shopping wankers kill the traffic flow), so it's generally not too bad. That is, of course, once you're on a bus. The bastards tend to show up at random intervals rather than the timetabled "every 12 minutes". Bastards.