Don't have strong opinions one way or the other on Knewton. That being said, I generally feel that enterprise software where you sell to institutions and publishers is fundamentally disconnected from software that's targeted at the users directly.
I would greatly prefer to hear students raving about a learning product rather than their instructors. In your case you seem to be a bit underwhelmed by what they offer.
I would greatly prefer to hear students raving about a learning product rather than their instructors. In your case you seem to be a bit underwhelmed by what they offer.