Chinese hamsters are very different to mice or rats, for example mice and rats require company and Chinese hamsters often prefer to be housed alone. Whether they are dwarf hamsters or not depends on how you define 'dwarf hamster'
Some people (and law-makers) define them as only hamsters of the Phodopus genus and therefore feel Chinese hamsters aren't a dwarf. I, however, feel that as I show them in the dwarf hamster section of shows, they are dwarf hamsters (and I prefer the term 'dwarf hamster' to the rather cumbersome alternative of 'General Other Species of Hamster' or GOSH).
I'm not sure whether you were referring to wet tail or liking toys in saying the answer was 'maybe'. Chinese hamsters don't get wet tail like Syrians (though they can still get diarrhoea, but not wet tail). My answer regarding toys was my experience of Chinese hamsters, that they prefer to have things to hide in rather than wide open expanses of cage.