+1 on this bag for light 3-season conditions.
I own the same style bag and have slept in it every night since I bought it about 6-8 weeks ago off Gear Swap.
I have seen it sold as a 30* bag, but MB's website says the EN comfort rating is 40* and that seems accurate to me.
In regards to comfort, the stretch system trumps every other bag I have ever tried including WM, FF, Marmot etc.
Good price on a great bag. Free bump.