Been looking for a while but was going to wait for a steam sale & get a four pack for myself & some buddies.
You should check out a TB vid called secret Hitler for a good example of a module in action.
I've not tried the Tabletop Simulator but it does seem to work fairly decently from videos, not sure I'd want to pay £11 for it as I don't know how much use I'd give it.
Another similar bit of software you might want to check out is Vassal Engine, it's not as nice looking at the Tabletop Simulator but it also has a module for the Star Wars X-Wing game and is a completely free/open-source project.