We climbed Dark Star at the end of June 2012. The summer of 2012 had very little snow and so approaches and descents were not complicated by the addition of snow or ice. The route was really fun. The best climbing is in the first 8 pitches up the main headwall. There are 2 5.10 cruxes you face during these pitches and they are both really fun and not incredibly awkward or strenuous. In particular the 5.10a on pitch 3 includes some great finger locks.
We were nervous about route finding considering that most of the previous parties did not find the correct start to the route, but we were able to locate the correct dihedral.
Overall ~11 hours on the route. The simul-climbing the ridge really felt like it was taking forever, so bring a good mental game with you. A really fun climb overall, with nothing too burly or physical to deal with.