I haven't tried it. You might want to check out the additional Amazon reviews on it:
http://www.amazon.com/s/ref=nb_sb_no...0Treat%20Maker
It probably works fine. The limiting factor would be how much you like soft fruit treats. Basically it turns out frozen pureed fruit. The texture might be similar to soft-serve ice cream, but it won't have the creaminess of ice cream. Also at least one of the reviewers said it was annoyingly difficult to clean afterwards.
This seems to be similar to what the Vitamix blenders can produce.