I grew up on instant potatoes - real potatoes were for at grandma's house or holidays. My mom is a hell of a cook, but time was short.
I still like them, but my kids revolt. So, I make only real. I make a huge batch at once and use them throughout the week. They aren't hard, by any means, but time is short...
Baked up 10 huge potatoes yesterday that will be used all week for various meals, AAMOF.
I like roasted potatoes, fries, etc. dipped in mayo, so I don't see why I wouldn't like mashed with it.