+1, very happy with my Uplift desk after ~8 months so far. I would avoid their chairs (not built by them, I would guess) – I ended up returning mine b/c it was very uncomfortable. But the desk is fantastic and I'd buy it again without hesitation.
I think it depends on the chair. I got a Raynor Ergohuman chair and I've really liked it. Not cheap, but a cheaper than HM or Steelcase and I've been very happy with it (it's mesh, and it's hot here in the summer).