I've had my AeroPress for a long time. The paper filters that were provided have lasted because I found a way to reuse them. And no, using them more than once really is okay, in my book.
The stainless steel filters have been around but I didn't bother to try until I came across the Mason Jar 2 Pack deal. I'm happy to say that my coffee making experience just made a big improvement! There was a notable improvement in taste! Cleaning the fine filter, which I use, couldn't be easier.

Bought filters for my aeropress. They arrived quickly, fit perfectly, and make a great cup of coffee.

Both of these permanent filters work very well to produce great coffee without excessive sludge at the bottom of the cup. There's some difference between them in the coffee's taste, so take your choice.

I really enjoy using this filter in my Aero press. It works very well, super easy to rinse clean, and I am so glad to not be throwing paper filters into the trash and often buying more—I never run out of them now! I also appreciate the quick and efficient shipping.

This is so much better than the disposable paper discs! Lost the perforated one pretty quickly unfortunately but the mesh is working wonderfully!