Seconded. The stick kind with a variety of heads, including a head for hardwood floors. Game changer, at least since having a kid.

I prefer the joy of using a great lightweight cordless vacuum over having a robot vacuum. Vacuuming has been one of the household chores that was delegated to me as a kid growing up, and the difference compared to extremely heavy corded vacuums makes the experience feel like house magic.

Seconded. A while ago we had a bit of a windfall in the form of a Lowe’s gift card and so we splurged on a Dyson. It felt extravagant at the time but now we use it daily and it’s been well worth the investment.

I can't overstate how much more pleasant those are, compared to a regular vacuum. It takes the pain out of the process.

Yes. Bosch makes good ones, which allow you to switch the battery (and even exchange them with the batteries in their power tools).