I've tried many of the competitive filler/putty's in the last couple of years. i use putty frequently for professional looking results. this product was around when i was a kid, and at that time, it was about all there was. it remains to this day the one i use most often,because it works great, at much lower price point.i'm trying to use up the other products I've bought and tried, but i keep going back to good old Testor's, and use a lot of it. you can pay more, but this stuff works.