I love it, but it did take me a few listens to get used to. On my first listen I thought the same thing you did, that it didn't "sound like the Pumpkins,"-- but then I thought about that and realized that (in my musically uneducated opinion) each of their albums sounds different than the others anyway. So I think having a new sound is actually pretty consistent with their history...
But then, I'm a die-hard fan, so I dunno what normal people think! -- see my sig line... have lyrics from Mellon Collie engraved on my wedding ring...went to three of their concerts this summer, plus two during Billy's solo tour... lol
Anyway, give it a few more listens, mebbe it'll grow on ya. I think I need to go listen to it right now, actually