I am sure that me telling you this is redundant, but there is no way on the entire universe that you can get your hands on one brand new, so you would have to get it preloved and the prices are beyond jacked.
If you are willing to pay the ransom-like prices for one, aside from the bubbling I have seen up close two different issues:
1) One that got a small hole that just got bigger. Whilst it was not a ditch, it was unrepairable. The PVC on this bag is thicker than the average plastic bag, but I would take this into account.
2) Another one that got sticky with heat and left a sticky feeling and ugly smell on the hands and the things inside it. PVC’s melting temperature is way beyond high temperatures on Earth, so it is not like the bag will actually melt, but this was definitely uncomfortable.
So you may think that two bags are just two fishes in a huge ocean, but do consider that the production number is super low, so the percentage of issues on this is quite high. Maybe not as in the ikat Neverfull, but definitely high.