If you as an album or EP buys, has worked at the Skrillex off only as a collaboration with Diplo, which is like a journey into the unknown. Some people are not sufficiently open to new ideas, new styles, new music, some just go with to travel and discover new sides of the music and its diversity. In music, there are no rules for the imagination to put together a song.
I personally am not a fan of Justin Bieber and other pop singers, but with an unbiased way by heard the album and I must say that it is not really bad. (Said not many pop singers represented in the gallery) It's definitely new and unfamiliar, but that is by design. Jack Ü falling on his conscious unfamiliar sound mix and ensures a lot of attention in the electronic scene. Some love it, others can do anything with it.
For me a must, but because the songs stuck in my head as earwigs and the mixture is simply fresh and new.