I've got a Ferm one that I picked up this summer from an old chap that lives about 300 yards away from me, for the bargain sum of £30!
I've only used it once, to check it worked ok, and it seems to. Never used a table saw prior to that so I need to do some practising on how to use it all correctly. I'm sure for this money it's likely a questionable machine, but it appeared to cut a test bit of wood in a straight line. The fence is pretty rubbish, and the mitre guide thing wobbles about so probably not much use.
I'm sure though I'll be able to tweak it once I begin using it and finding what annoys me.
Will check the model number and update this post accordingly.
*Edit* My one is a Ferm FZT-250