As Origami said, avoid Trafford if you can actually go to Agecroft, for the simple reason that Agecroft has a river, whereas Trafford row on (a particularly rubbish) canal. The facilities are also a hell of a lot nicer, and the club competes quite a lot, so definitely try to go for Agecroft if you can. Trafford is stressful at best, between barges, other boats, bits of rubbish floating about, and these are not ideal conditions to start rowing (and even less coxing, it's so narrow you regularly make the blades scratch the bank).