I have two desks at work. I converted the lab bench to standing desk because it is adjustable. I dock my laptop at both.

At first I sat in the morning and stood in the afternoon. This is great to avoid feeling sleepy after a big lunch.

After a few months I feel I am standing up straighter, can tolerate standing all day and often prefer it. I feel it has strengthened my posture.

Sometimes however I like to switch to sitting - sometimes I associate sitting with a certain kind of focus.