I have played a lot of 5e, but am still hesitant to give a very deep analysis of subclasses. I have definite opinions on the ones I have a lot of experience with, but there are many I just haven't interacted with much as a DM or player to really give an worthwhile evaluation/comparison. I wonder just how useful some of that feedback is going to be on the less played subclasses. It could be that there isn't much feedback because they are viewed as inferior in some way. The feedback on the feats and spells should be more solid.