To figure out if Aisle period panties are worth the money, it's necessary to get a general idea about their products.
To start, Aisle has several styles of period panties ranging from boxers to thongs, each assigned an absorbency rating. As mentioned on their "Our Story" page, Aisle is committed to body and gender inclusivity, so they avoid overly-gendered product design. They also have a matchmaker quiz available on their website to help you identify what product would be best suited to your needs.
Price-wise, they are on the higher end of the period panties selection (per The New York Times), with their current line ranging from $34 to $48. In terms of functionality, Aisle's period panties use Truetex™ fabric technology in their multi-layer lining to "absorb at least four tampons worth of menstrual blood," depending on the particular style, as their website explains.
Their BOOST line of underwear comes with a removable booster that adds an additional four tampons worth of absorbency, which is great for those with a heavier flow. The website adds that this particular line is made with organic cotton and technology that help "stop period leaks."
Aisle is recognized as a Certified B Corporation, meaning they have made legal commitments and concrete efforts to achieve both social and environmental sustainability (via B Corporation). Although they have only received an "It's a start" rating on Good On You, they are commended for their use of eco-friendly materials.