It is no bad album at all. From a musical standpoint it is a great effort.
But it's always a bad idea to mess around with songs people know and love. To me there's no point in doing that.
So if they did that kind of arrangements with new written songs, it could have been a masterpiece. The way it is, people need to get used to it and accept it at best. But none of those songs will ever gain the status and the love the originals have.