My expectations weren't high in visiting this site and sadly this came to fruition. Reading the previous comments, I was still expecting that some of the site would be 'open' to visit and explore the history including commercial ventures / museums to explore surrounding the wine making history and reason for this nominated site. Sadly, we walked around what I would describe as a "renovated" ghost town that was all locked up.
We visited this site on a Thursday in late July, which I would have expected things to be open. ie It was not a weekend or sometimes Mon - Tues closure days, which we have encountered at other sites. It was obvious that the area has been closed for some time and there were no signs indicating when, or even if, some of the wineries / buildings / restaurants would be open. No physical museum or information on the history of the site at all. We came across to other groups of people that were also wandering around perplexed about the site. The only information available was a map of the site and previous usages of building located in the small town on top of the hill as well as a sign indicating that it had been refurbished with funding by the EU. The cynic in me would say that it was funded to provide a tourist attraction rather than protect heritage in that area and the investment has failed to attract the tourists, so it lays dormant as the tourists (in numbers) have failed to materialise. It certainly has potential, but further work is needed if this to be considered for an inscription. It was free to wander around the old town and it appeared there were some residents living in some of the newer dwellings at the back of the old town, but other than us and a couple of other confused visitors we had the place to ourselves. There were other wineries within the region that were open, but not here at this site. It was a thumbs down from me.