It is highly amusing that the guitarist from Sleigh Bells used to be in Poison the Well, BUT srsly their shit is just so big I love it. "Beach Girls" is better than "Kids," though. I don't really like how they mixed that track when they re-worked and re-named it.
The Major Lazer/La Roux mixtape is a decent listen. I was kind of expecting there to be more bang to it, but it turned out more pop than that. Vulgar though it is, I think the re-edit of Quicksand is probably the stand-out track on it.