i bought one brand new , mainly for the three year guarantee, ive had it a year and a half and is still working like new. Its infinitely adjustable so good for fine tuning and another plus is it can be lifted, yes its heavy but it means you don't have to rely on hard surfaces.
nothing has broken - apart from me melting the torch after removing the shroud to get into a tight spot- oops!
also the lincoln innershield is excellent stuff meaning you can weld anywhere, i use it specifically to boost weld penetration as its alot hotter- is expensive though