Honestly, if this is true? Good.
While I'm not opposed to the idea of an IAWL musical, I felt like the execution was not up to par.
1. I did not think the songs they added were well integrated into the show at all. The songs added to Dickens ultimately fit better and at least conveyed more effectively the mood of each scene. During IAWL, I felt each time a song came about, it stopped the story cold for no good reason other than "well, I guess it seems like a good time for a song."
2. The projected backgrounds were never easy to appreciate with the raised platform cutting them in half.
3. Show vs. Tell imbalance. Whoever adapted the material made the strange decision to keep the moments that show all of George's worst qualities while only telling us about most of his good deeds. Some of it is undoubtedly due to the difficulty of staging some of those aspects, and we do see him help Mr. Gower. But we don't see him save his brother, him stopping the run on the bank, or the scenes after Potter when he is genuinely shaken. We just hear that these things happen and have to reconcile them with the main character who we often see treating others like a jerk (held over from the film, but somehow Jimmy Stewart's skill/charm made the character's rougher aspects easier to ignore). This makes it harder to relate to and root for George, which is catastrophic because the entire story falls apart if the audience isn't in his corner. Instead we largely have to take the Angels' word that he's as good as they say he is.
4. The religious elements felt like they were poorly shoehorned into the story. Which is funny, because on the surface they would seem to fit more organically than with, say, Dickens, but that's not how it played in reality.
I expect no one to agree with me, but I couldn't get past those parts of the show. I do hope it is replaced by a new production.