Got this set up a few days ago, and I love it. If that changes, I'll be sure to post an update. I wanted the best elliptical machine I could get for the least amount of money, and I think this is it.
Of course it's not as solid as one you'd find in a gym, but for the price, I don't think it can be beat. This sucker is QUIET. I don't have to turn up the TV or music at all. It does wobble just a tad, which I expected from the other reviews. I tried it on the hardwood floor, then put down a yoga mat, and I don't notice a difference between the two. It's a really slight wobble (definitely not rocking back and forth), though; it still feels very stable. The motion is very smooth, not at all jerky (I've been on some gym machines that were more jerky!). One note -- if you have large feet, the footplates on this model are only 12 3/4" long, and there's about a 1" high rim that goes along the front, inside and back of each footplate, so you can't overlap them if your shoes are larger.
Assembly was kind of a pain, because the parts list had bad descriptions -- for example, there are two kinds of washers that are the same size; one is just thinner than the other. On the parts list diagram, they're shown as different sizes, and the names aren't descriptive enough (one was called "special" -- not very helpful). And some of the assembly diagrams are pretty crowded, but overall, if you've got some patience, it was pretty straight forward. Some of the things the directions tell you to assemble are already pre-assembled, which was nice. The only problem I had was when it came time to connect the moving mechanism the footplates rest on to the rotating arm on the wheel. The connector pin would just not screw in. Turns out that when they screwed the u-clamp (the part the pin slides through to connect to the wheel) on the back of one part, they got the angle just wrong enough so the screw wouldn't line up perfectly. Once I realized that was the problem, it was easy enough to loosen the clamp just enough to adjust the angle, then re-tighten. All in all, it wasn't a good time, but I still put it together by myself, with the "help" of a one-year-old, so it's not terribly difficult.
5 stars for what it is -- a cheap elliptical machine that does the job well.