I saw that Amazon is selling eSUN PLA+ filament. From the product description:
Blended with special biodegradeable bio-polyester
High rigidity. Good Glossiness
10 times tougher than PLA
Smoother finished printouts
No cracking or brittle problem
Also, I believe I saw a PLA to PLA+ comparison spec sheet in one of the product images.
Curious if anyone has been using this filament and sees any difference from the non plus PLA that eSUN markets?