EAN Works, but the GUI is clunky and it's missing some features (which I suspect are in the works). You can trigger playback from the keyboard, which is great, though one must resort to the mouse when quickly trying something out in different voices. Command keys would be nice here. The Apple Speech Synth has always had a hook for controlling the "speaking" speed. Is that gone? Do we now have CoreSpeech? Haven't been keeping up lately...
Aside from the Features and Ease of Use issues, Value and Stability were both great.
(Version 6.1)