I think the music will slay.
The guys producing the music are brilliant at what they do, and that skill is being paired with a woman who can write insanely catchy hooks and formulate well crafted pop songs. I imagine it's going to sound much fresher and crisper than we're used to, more DJWS than Fernando or RedOne - both of which can be quite heavy handed producers.
I mean, listen to RedOne/DJWS/Fernando stuff pre-Gaga, and then post...you see a massive difference in quality. Now, considering how much better the Madeon/ZEDD stuff is pre-Gaga, you can only imagine how good it'll be once she pulls their best out of them.
