What The Babysitter is about is very well depicted in the blurb. The game is addressing players who are either very young or very new to IF. The game world is small (but offers space for exploration), no walls of text, the parser is solid, the content is straightforward - to me the game is a bit boring (hence the three stars), but for the afore-mentioned target groups it's actually quite good I think! Two remarks: The puzzles are somewhat generic, and to progress you need to (Spoiler - click to show)do chores that a babysitter wouldn't normally do.
My playtime was around 15 minutes.