I'm on my second pair of Masochists and while they are fine for everyday trail running, I was just reminded why I don't like them for ultra distance runs.  If you are looking for a shoe with good support, these don't hack it for the long haul.  Otherwise, they drain exceptionally well, are light (but not minimalist by any means), and the soles seem to last a while.  I may seriously see about an orthotic to add a bit of support, as these are otherwise a bargin-priced winner of a shoe.  But for a shoe being advertised as offering stability for overpronators...meh...not so much.