I've ordered twice from BWW and both times the wheel sets were nicely tensioned and straight.
I usually build my own wheels from scratch but BWW prices are hard to beat. I can't build my wheels cheaper than theirs. I usually throw the new wheels onto my truing stand when they arrive. Both times the wheels were nice and straight. The people taking the orders are very knowledgeable about their products and are easy to deal with. The wheel sets usually come with the skewers as well. The wheels I purchased have been holding up well. Both my wheel sets are Mavic Open Sports with standard DT Swiss 2.0 spokes, DT Swiss brass nipples and 105 hubs in silver.
The only difference between my wheel sets is that one set uses silver Mavic hoops and the other set uses the black Mavic hoops. I personally like the black finish as it is usually easier to keep clean.
I was originally recommended to try BWH from a friend who like you is on a budget. I would order from them again.