I use a *similar* one with my A200 and it will work fine with any camera that has a standard tripod screw mount (nearly all cameras).
It is true that it will shake very easily in wind (not a breeze) but I can't complain about the one I have I have many many good shots with it's help and they are usually extremely light to carry too. If you don't have the top (centre post) extended all the way up it is more stable.
Personally £9 is nothing for a tripod. In a way you get what you pay for but it will do what most people will want fine. No it won't match a £100 tripod by any means but I doubt anyone is stupid enough to think that anyway.
