hi ino,
the standard stuff they sell is good quality, the black ones i got were branded T Euro, about the same as a steadman lightweight one.
most of there stuff is branded, i got some really nice ladies zip hoodies for £2 each.
The wombat tie dyes they do are good heavy tees.
just make sure you are buying the good stuff, not the graded B stock, which is cheaper but has manufacturing defects. If you check out the site it is all explained.
As I said earlier it is betrter if you can actually go there and see the stuff, also there are things which are not on the website. Last time I was there they were doing kids football shirts with english flag embroidered and "England" printed on the front, for only 50p each.
As i work the markets with my tees, i am always looking for cheap tees, and they are out there you just have to keep searching.
mik