Years ago I installed it on my sister's computer as Windows replacement. She was initially happy but soon started to complain that it was hard for her to use, apps would freeze and graphic artifacts would remain on the screen in similar way as on XP once. In the end we went with Xubuntu because we thought that reinstalling as "upgrade" is not worth it.

It's a stop-gap for those who were using OSX and not a permanent solution, or something for people who want to try Linux but want a really easy way. But then, there are better managed and newbie friendly distributions already.