With an American or (in this case) European machine, you're paying for things, like support and accountability, which you don't generally get with a Chinese-made equivalent. If you don't need any help getting a machine to run, and you're willing to roll the dice and hope that what you get measures up to what you thought you'd ordered, then a Chinese machine may be a good choice for you. But this forum is full of complaints and pleas for help from people who lost that bet.
The plastic-bodied spindle on that particular machine does look a bit weak, though (they didn't have much to say about it, so I'm going by looks only). If you're planning to cut anything harder than wax, or for more than half and hour at a time, you might get one with a more powerful spindle, preferably a 3-phase variable speed type that runs from a VFD. The Chinese tend to rate their spindles optimistically, so you can't really count on one of them actually running at 2.2kw for very long, but a good one would probably be better than the Dremel-type tool mounted on that Stepcraft.