I use the Glen Del Buck with the Vitals insert. They layered insert does not hold up as good as the vitals insert. My only complaint is there is a metal rod that runs along the belly of the deer. If you shoot a little low it will bend aluminum shaft and sometimes mess up carbon shafts by forcing the field tip inside the shaft. Other than that I would definitely by another.
I've used the delta brand for years & they hold up fairly well for a lesser price. My fellow bowhunter & i start shooting in may & soot @ 300 - 400 arrows a week into it. I replace the vitals yearly. It would last longer but we shoot g5 montecs into it closer to bow season.