I have a standing desk, in the corner of my living room. I've tried other locations, and that hasn't worked. Being here, I don't get the feeling of being "disconnected" from the household.
Most importantly, of course, is that it increases my availability to my cats. They are quite efficient at expressing their needs, and I have to be ready to drop everything, in order to attend to said needs.
I have a nice chair (a Herman-Miller Embody -overrated). I never sit in it. I stand at my desk whenever I work.
I have a desk that can go up or down, and have it set up, so that I can lower it, quite easily. I never do. It stays at one level (42.5").