Is it worth it? YES. Do you really recognize shots from the series...YES.
The Dubrovnik Walking Tour folks have it down. First, there was our guide who, for the last 5 seasons was the stand in for...(drum roll please)... Danaryus!! Yes, the mother of dragons herself was our tour guide or, at least the girl whose job it was to learn her lines and deliver them standing in the shot while they checked for lighting, etc.
And she used "we" a lot, as in "we shot Geoffry dying 15 times" and "we had to pay all the residents on this street to close their windows and turn off any audio equipment because of the sensitivity of the sound equipment." Basically, we got a tour with a double insider: local girl who worked on the series. She had a bunch of pictures with the cast members too.
To help us "see" the scene set we were looking at she would show us a picture of the scene wherever we were so that we could see the changes they made whether it was CGI or added greenery to hide equipment and narrate what was happening in that shot(Little Finger and Circe debating about power in season , Sansa's almost rape until she was saved by the Hound).
If you want to know more I'll have to tell you over a cocktail while looking at all my pictures!
Great tour, worth the money.