I'm sure its a perfectly fine device but most Android mini versions are really gimped. In the case of the One Mini, the main problems are the 1GB of RAM and lack of OIS. For a simple user, its probably not a problem but the lack of OIS is a huge downer if you use your camera a lot.
Yeah, fair call. I'm one of those weirdos that mainly uses it for calling people. Music and maps is about all the other use I get.
It is awfully thin and light though, which is a great tradeoff to me.