I had to go AT from Tele because of a bad knee. I wanted a light binding, that I could use mainly backcountry and occasionally in resort. These bindings are worth every dime, they are light, easy to use. The three heel heights for skinning make climbing easier because the transitions of rotating the heel is smooth. I always had trouble with climbing bars and find this set up much easier.
They are daunting at first because they are so different, but 1 ski and you'll be a convert. Like the guy above mentioned the only down side is having to clean the holes in your boots so the toe pins will go in. A Q-tip does the trick nicely.
I come from a tele set up, so I cannot comment on how this compares to a traditional alpine binding, but I can say it it was easier to tour on these dynafits than any tele binding I have had. I opted to mount them with the brakes, which have been great for in resort. When you backcountry and go to turn the heel for touring, make sure you press the brake plate down first
(took me a second to realize this)
I mounted them on Black Diamond Joules and have been very happy.