Can anyone tell me about this tripod?

I have a Shen Hao 4x5, with a 180mm lens, by way of cameras. These seem OK but I'd like some real-world advice before dropping some dough on a product.

It also seems to make sense to get a tripod head with a quick release plate I can keep on the camera...any help there also would garner you a free pint (offer conditional on us being in the same city!)

http://www.bigcameraworkshops.com/default2.asp