I'd definitely recommend Premier to others, everything is very organized and the curriculum is perfectly paced for self-studying. There's a quiz after every module and most of the questions are open-ended, so it's quite a lot of work, but it's worth it, because since it's required to pass all of the assessments to get the certificate it means that the certificate itself is of high quality. And aside from the certificate, the material was very helpful and got me to improve on my teaching skills by applying what I learn in class. Upon reflecting on it I realize that the teaching techniques I'd developed on my own through time and experience were already mentioned in the course, so I'd imagine that the new things I learned in a few hours just by taking the course would've taken me years to learn on my own from experience. But there's one problem.. They don't mention at the beginning that you have to pay 53$ for the digital certificate, just to get the PDF. It's really annoying finding out like that at the end of the course, but if you already know before purchasing the course then it's not as bad, so make sure you add 53$ to the price of every course you might consider when you're browsing, just generally add an extra 53$ to your budget before getting into anything.