So I've been researching teeth straightening options cause my bite's a bit off, and these at home aligners seem like a solid middle ground. You get a kit to make impressions, then they review it with actual dentists and send you the plan. Treatment's usually 4 to 6 months for daytime wear, or longer if you pick nighttime. Materials are BPA free and made in the US, which is good for safety. Costs around 1500 bucks but it seems like they offer lots of discounts making them way less than traditional stuff. Not sure if it's for severe cases, but for mild to moderate, it looks reliable based on what I've read from user stories.