I think there are many restaurants in European countries that are accepting bitcoin as a mode of payment but its hard to expect the same result from other countries as still there are many countries who have not even heard about the bitcoins till now.
That is the main problem, people in many countries are not aware of bitcoin like people in US. I heard about street in Netherlands, and there is restaurants in some big European cities and that`s it, big part of Europe is still in a shadow.
There is 95 restaurants on this list that OP presented us, that is nice, probably there will be even more in the future. I wonder how much customers pays with bitcoin in this restaurants, is there any info about it.
I think it will equivalent to their local currency but this information you can get only from a person who has actually made a payment using bitcoins as most of the users will say the same thing that don't find any place to spend their coins.