Another upvote from me. Purchased November 2016 for my home office and it's held up very well. I've found the (memory) motor controller a little cheap (it'll just stop and/or switch directions sometimes), but otherwise materials have held up well.
Bad ones? I've definitely had furniture that looks beat up and/or doesn't work as well after 2 years of everyday use. It's usually the dirt cheap stuff, but not always.
+1 to to this, also people on the internet are crying bloody foul over the Bekant as well though it's more about the electronics that come with/build quality I think.