I haven't seen it first hand sorry but I've heard from a friend of friend that it's worth seeing. My experience with the kind of culture of UK/Europe artists you will likely not find the production holds a candle on the 2017/2018 production though - after watching the Staunton production last year it became obvious to me that everything about that production was very special and not something that can easily be repeated.
I have seen Caroline O'Connor in a lot of shows over the years (e.g. she did Anastasia on Broadway but I've also seen her in Anything Goes, Chicago, Kiss of the Spider Woman). She is perhaps the closest thing to describing an Australian Patti LuPone/Bernadette, with charisma and a wonderful singing voice - which Sondheim complimented when she did Sweeney Todd in Paris many years ago.
I personally would see it if I was in Paris. I also kind of enjoy the novelty of seeing shows in different countries.
If you do, I'd love to hear what you think!
Give me claws and a hunch, just away from this bunch.