I will say that, in the sit / lower position, I keep the desk at the lowest height - so it is easy for me to adjust from the stand position to the sit position. The height adjuster is manual (but not a crank!), so if you don't want the sit position at the lowest, that might be difficult. I find that when I adjust from sit to stand (the taller position), I don't have difficulty because the hydraulic system maintains a controlled movement, and I just stop when my arms are at 90 degrees.
This was super easy to put together - did it myself in under an hour while holding a conversation with a family member over the phone. The desk looks clean and matches the pictures and specs provided online. It is small and lightweight, but sturdy enough to hold my monitor, laptop and charging dock, keyboard, mouse, and a cup of coffee. I am very happy with this purchase.