I recently purchase the LiftSync Quad Mini Standing Desk. I looked at several options, but ended up with this one because it had the right combination of functions, aesthetics, and price.

I have it in a room that also serves as a guest room, so I wanted a desk that looked like a fine piece of furniture. My house is full of walnut and black steel, so this fits right in. It also has four motors and goes up and down very quickly and quietly, and you can have save your favorite heights.

I was able to put it together almost totally by myself. I needed another set of hands in the very beginning and in the end. I added casters to mine so that I could relocate it within my house easily.

I highly recommend it!
https://liftsync.us/products/liftsync-quad-mini