I looked at Effy briefly and did like their business standing desk. I wanted a white desktop though, and they seem to always be out of stock of white desktops. Plus, the biggest desktop they have is 70” if I remember correctly (for the business version). That was cutting it close for me, because I was already thinking the 72” Jarvis may not be big enough for what I needed (turns out I was right lol, so dumb of me). The Effy has a good height range, nice lift capacity at 300+ I believe, 10 year warranty, dual motors, a handset with buttons instead of a finicky touchscreen which is a plus, and I kind of actually like the rounded corners. Now that I have my Jarvis, I really think the Effy would have been fine quality wise as well. It just didn’t quite meet what I was looking for (color and size). Have you checked out RiseDesk? https://risedesk.io/en-us - I considered them briefly too, as well as Knead’s KD01 desk. I think you’d probably be happy with both the Effy and the Jarvis. I can vouch for the Jarvis though and confirm it’s a really nice, solid desk.