For a younger child, yes, it isn't bad. Some basic reading skill is needed so ages 5+ would be best. Overall though there is little variation or replay value so I wouldn't buy it for a pre-teen or older child that is already playing more advanced games. This game has less content than your average Facebook game does.
If you're into games that involve a lot of fashion then yes. Since this is for a DS,the graphics aren't all that great. But it's not completely off of the market either. If you're looking for something where you can actually draw,design and see your creations come to life (in the video game) then I wouldn't recommend it. Otherwise if you're just looking for a fun game to play that involved dressing up people,go for it! Hope this helps.