I ended up really liking this book. It starts slow, you think Coniglio is going to be a helpless girl but she has great development and, as well as all other introduced characters, ended up being very well fleshed out. For the most part everything seems to fit seamlessly with the canon (except Trish...) and even the development of the battles could very well fit with the rest of the ones in the manga. You can really feel the authors' love for Venice. They go on rants about the beauty (or, sometimes, lack thereof) of the city, every chapter, before once again focusing on the bizarreadventure at hand.

The Italian translation does a great job, but it has plenty of caveats. They remove Bruno's ARIARI as well as change around how spoken lines and thoughts are presented, have a couple mistakes which partly stem from being unfamiliar with the series, remove the profiles page and the tiny Giornos at the corner of every other page.
On the other hand it was lovely to see everyone speaking Italian!

I would give a 4 if the last chapter didn't feel so rushed and random. I feel compelled to rewrite the ending in a fanfiction. The epilogue was very beautiful still.