I've seen the same comments on the Griptilian handle on other sites. Some guys want G-10 or Micarta or some exotic wood. The Griptilian and especially the Ritter Grip (RSK Mk 1) are about performance. The reviewer notes the cheap "feel", but did the handle actually fail?

"Feel" is very subjective; I have many knives that "feel" more solid and I don't carry them because they weigh a lot more.

In my opinion the light weight handle is very ergonomic and functional. There are perhaps many other materials would feel better, but how much would these other materials add to the price of the knife and how much more would the resultant knife weigh?

In the end it's your call. I like them. Excellent steel in a good blade profile and a solid lock -- all in a lightweight package that carries well. It's a survival knife, not a piece of art.