I have been riding the Superlite 2.0 bindings for the last three seasons and have had no problems with them. They are crazy light on the ascent and handle great on the way back down. A few days ago I toured up Grand Targhee for the first time this season and enjoyed the effortless ascent so much that it was finally time to make a gear review video about these fine, fine bindings.
You can get these bindings with brakes and adjustable length or run them barebones like I do.