This is written out of interest, but also possibly for the benefit of others.
I see a number of posts about Eisenstadt on the forum, but none seem to mention the Monastery Church.
My mass in Seattle later today is Hadyn's Little Organ Mass sung by a local orchestra. The notes on the pew sheet are really interesting, about the Monastery Church it was written for (and the underlying history), and I am really looking forward to the service.
There seems to be nothing on the internet about whether the Church is open to the public, indeed whether Sunday services happen there.
So, just out of curiosity, I was wondering if anyone knew. This kind of thing is what informs and enriches my travels.
As I say, not hugely intending to go there- but you never know.