this guy sells/advertises on ebay quite often. if you want to get into WFP at the lower end of the scale then this may be ok for you to start off with. i started off myself trying to do things on the cheap so to speak, but ended up scrapping alot of the gear and buying quality parts that are going to last but also work better.
people, just do your home work and make sure you know what you are buying. some dont want to spend much on window cleaning and are happy to buy a budget system, for others they want something that bit better. buy what you need to do your work and spend your money wisely.