The cost and the convenience is much better than going to see a dentist or orthodontist. However, it’s been a few months since I finished my plan. I followed the steps and instructions correctly but my bottom teeth are not entirely straight (my top teeth were already pretty straight so they were aligned completely with the aligners), I sent an email about my bottom teeth with some photos but the response I got was not about my bottom teeth not straightening properly. I’d probably recommend paying a bit more and going somewhere you know you’ll get the end results and service you paid for.