I don't know, even after smoking for a few years I could still "feel" it, beyond just the cessation of craving; it's the same feeling I get when I use nicotine lozenges sublingually for focus (which I do at most once a week to avoid tolerance)

For many the pleasure is just the break from the norm (a chance to leave their desk and go outside). A poor excuse but it is what it is.

No. There's pleasure.