I like it. It's kinda different for STP. It definitely sounds like Dean, Robert, and Eric playing their instruments, but it doesn't sound like a song they would typically write. It's good that they are exploring new things they haven't done before as STP. The only bad thing I have to say about the song is that it does sound a bit predictable at times, especially in the chorus. I love the single-note riffs in the guitar and bass though -- reminds me of Royal Blood.
Note: Dean's guitar tones sound incredible on this song. His solo needed to be twice as long though.
So far, I think I like Meadow more, which has more of a classic STP sound, but Roll Me Under is a good song, and I'm excited to hear more new stuff.