So far, so good. We have a small dog(14#), so maybe not the best test for strength or capacity; but the bags seem to be as good as any we've purchased over 15 years. The bulk price is excellent and the packaging minimal. The bone "dispenser" is pretty basic; but looks like it would do the job if we needed it.
The perforations are not as apparent as some other brands; but not a big problem finding them. Once found, they seem to tear as easily as most others. These feel like a lightweight plastic bag...I hope they are indeed bio-friendly. Wouldn't mind the option of a light scent(not lavender, please); but it will be close to a year before we have to re-order ;)