We really enjoyed our little tour of Triestre. The price was right and the staff very nice.
I only have one criticism. The audio in English was very clear and very interesting. The only thing that you really must change , in my opinion, is some of the words used.
Some of these include the following from memory but I am sure there are more.
Epoque: is not a word used in English, period would be more appropriate.
Spur: Can't remember the context it was in but it means nothing.
Mole cost: I think he was supposed to say coast and was in refering to the harbour and surrounding, but in any case not a thing.
Slewing, in reference to a slewing bridge. This maybe technically correct but unless you were an engineer or grew up in 19th century it means nothing. Rotating bridge or something similar would be better.
It is a common error made everywhere you travel but I think it is something that would improve the experience of this wonderful city.