I, like the others who reviewed before me, was apprehensive about purchasing this album, since my knowledge of French is poor to say the least, and the lyrics are fantastic in my opinion. However I purchased it based on the large number of five-star reviews it received.
And, like the other reviewers, I was very pleasantly surprised! I don't understand the full French language but my basic understanding (and my knowledge of the English musical) helped.
The best thing about it is the very different orchestration and mixing. This is very refreshing from the English version which I am familiar with. It's a differnet listening experience, if you like. There is a much stronger use of electric guitars, specifically, which is a very different effect. The ordering of the songs has also changed and been moved around.
And, of course, there is something profoundly romantic about the French language which really encapsulates the musical. And, it goes without saying that this is the original language.
Clearly, this album isn't for a casual listener - but if you own several of the English-language albums, I can't advise you highly enough to give this one a try. I promise you won't be disappointed!