I just pulled the trigger on one of these, having found it on sale for $169. I was looking at the DLT CF version earlier today and thinking how nice it was with the different look to the scales and the brass standoffs. I may even like that one better, but I really dig Micarta too and this one is $64 less.
I had written in the thread linked in Post #3 above that I wasn't so sure about a Grip in improved handle material with the same shape and jimping as the Noryl handles, but the improvement over the stock grips I found in the 550-1 I bought for my wife last summer has sort of convinced me that it's more a matter of materials than grip shape that annoys me. All my Griptilians wear aftermarket scales. This will be my 6th Grip and the first in the 551 blade style uncoated and without serrations. I expect this to go right into my work-carry rotation.