For me, it takes no time at all! I make my husbad do it! ;D
Truthfully though, I'v been camping in a pop-up all my life. The setup and teardown don't take all that long, especially if you can get the whole family into it. My husband and I work together, and as he is setting up the camper, I may be placing stuff around the campsite (chairs, firewood, coolers, etc). Then we switch - as he chops the firewood or sets up the other "accessories" we have, I go inside and put on the bedding, arrange the stuff inside the camper, etc. I would say setup depends more on how much "stuff" you have vs what type of camper you have. Worse case scenario, setting up in the rain on a not-so-friendly campsite, it has taken us 30 minutes. Most times we have it up in 15. But then, we are a practiced team.
Some things to think about - while a TT may not require cranking up and other steps, you still have to manuver it into a site and level it. These tasks are a breeze with our pop-up as we can hand-push it around. This has allowed us the freedom to "spin" our camper into a campsite configuration that would have never been possible with a TT. At times it gives us more parking in a small campsite, or allows us to position our step on something solid as opposed to mud/dirt.
No matter what you chose, planning ahead will make the setup process faster - as will practice. Hope you have fun!