I visisted Terra Libera in 2013 (sorry, I am a bit late with this review!) and it was a lovely discovery. It is an Italian-style countryside location which in this case is surrounded by some fields and forest. The location is rather suggestive in all seasons and the restaurant itself feels a bit like a mountain chalet.
It is only open weekends (or so it was when I went: you may want to check) and booking is recommended as there are not that many seats and it is pretty popular. They seem to always have a vegan menu which is a slightly deprived version of the vegetarian menu (including attractive cheese if you are that way inclined).
They usually do set menus which is another reason why bookings are essential: so you know what is on the menu and how much it will costs you. Definitely enjoyable!
Cons: Slightly far from nearby cities