It's the same old argument, I was a machinist and have ran all kinds of machines. I have a HF x2 and one of their 9 inch lathes. I also have a craftsman atlas 10x36 which I don't use, takes up too much space. If you pay attention to your set up and what you are doing the cheap tools will do what you want. You may have to take a shallower cut, use a dial indicator instead of the handle dials, or any number of other tricks of the trade to get the results that you want. As for the X2 vs the X3 the X3 has a stiffer column than the X2. I think the X3 is the better machine.
Well that's my 2 cents
Bill