I definitely think the case is better than the MTW4 imo. Not having any issues with it, but totally see who the silicone flap (instead of a hinge) could fail years to come. I do not like that it's a lint magnet. We'll see how that goes today. I haven't had any issues with the app, connections, or fit... yet. I don't own a Fitbit and a few months back got rid of my smart watch because I felt I was too connected! That said, I didn't really try these for the health features. I do miss the sound personalization that the MTW4 give, but seems Sennie is trying to do something similar in the sound check section of the app. Used them last night to watch a show on Netflix with my Viture glasses and they worked great. Even switched over to an audiobook and managed to side sleep with them. All in all, yes, a bit overpriced, but it seems most of the new TWS are these days. Blah. What they should've done is price them at 400, so my stupid self would obsess and try them anyway. What were you thinking, Sennheiser?!