Full user review
Surprising that its s/w compatibility is good except for one reason that at time of installation it will ask for permission several times and a location to extract files twice !! Its so simple and contains all; that is required to a user. Plus, its free !!! It has an option to download additional voices which may not work on new o/s.
Its development is in initial stage. After installation, sam, mike and mary like voices may not work on new o/s.