Product review (5 stars): They just work and fit.
If you have a Viking or KitchenAide compactor that takes the larger size bags, these are great.  I rarely ever have one punctured or tear.  The holes hold them in place well.  They do what they are supposed to do.  A bit pricey, though I won't take a star away for that.
And, I am amazed how they have figured this out.  When I open a new pack and grab and pull out a bag, it seems to always pull out with it the set of twist-ties.