I've just spent the first 5 hours on my Mediastation so will let you know what it sounds like soon.
On the mic page there is reverb, chorus and delay that you can set up and also a +48 volt phantom setting. I can also see a bass mid and high which must be some sort of EQ setting that can be changed. I'm certain it doesn't have the vocal harmonizer features as you ask for. Someone will say otherwise if I am wrong but I'd see the settings if they existed. Since it is software based I can't see why it could not be implemented into the future, although it's down to time and money and development for Lionstracs.