I currently EDC a Triage 915 with the orange grips. I've had it for a month or 6 weeks and haven't found any flaws yet. The modified sheepsfoot blade works very well for utility work and came razor sharp. The cutting hook is superb. I haven't used it on a seat belt, but I have cut about 40 cable ties with it, several pieces of plastic strapping, paracord and microphone cable. Both the blade and hook open easily with one hand. The Axis lock is as solid as they come and completely ambidextrous.
The Triage is a fairly large pocket knife, but I've found it rode well in khakis, jeans and even dress pants.
With the Triage clipped to my pocket, my SwissTool and Photon Proton Pro or Zebralight SC51 on my belt, I'm ready for most of the regular, and many irregular, daily tasks.
I had considered a Griptilian, but decided the Triage would suit me better. Of course, one can never have too many knives. . .