This (referral) link provides a discount on all of their standing desks/chairs: https://www.autonomous.ai/?rid=f1ef57&utm_campaign=referrals...
Couldn't be happier with the dual motor I bought a few weeks ago.
I had an adjustable drafting table when I worked at Boeing and it never occurred to me that it needed a motor.
Of course, if the user doesn't need to regularly change between sitting and standing, that might not matter.
In those cases, you do not feel any weight.
This also goes for those irritating slow electric versions where you need to hold a button down for 30 sec.
IKEA also has three "proper" standing desks (that you can adjust their height without doing the aforementioned) but they cost x2 and x5 of my desk, and I don't really care to change the height that often/ever.
(I don't work for Ikea, I just don't want to pay $1000 for something I can make with $100 (and have a better pension when I retire).
I cannot stress enough how (especially) a standing desk needs to be super sturdy with children/dogs in the vicinity!!!
I even did a lightning talk on my Ikea standing desk once. It's fun and relatively easy to build.
(Don't forget a pad to stand on)