Oh god, the boat club starts their relentless drive already. :P
Shi: Seriously, non-mixed sinks aren't a big deal. They're the norm in the UK, certainly for bathroom/bedroom sinks. If you're washing your face you let the water mix in the basin, if you're washing your hands/brushing your teeth then you only really need hot or cold water. I'm not on Q myself, but it's by no means the worst staircase. All of the staircases in Dokett have their own advantages and disadvantages (this is part of the reason that I like the place), yours has more larger rooms than any other staircase but some of them are a little dark and a few of them have an unfortunate view of a brick wall. The laundry room isn't actually on Q, but in a little building which is next to it. You won't get disturbed by it at all.
It does seem a little strange that they assigned you fisher rooms, because the JCR was told that they were reserving them for grad students. What Johnrambo said is probably right, though, they wouldn't stick you there all alone. In any case, Cripps is a stone's throw away and the rooms there are pretty beautiful.