I had a chance to test one just before they came out. My expectations were low, to say the least.
Which led to me being pleasantly surprised and impressed.
I worried that the crane was too thin and would bend, but I've yet to see that happen. The ergonomics are superior to the J-Frame, and the trigger is much smoother.
Only two downsides present themselves. As others have mentioned, it's easy to short-stroke the trigger. The other concern is the screw above the cylinder release, which can loosen itself over time.