Positives: battery life is quite ok. Charging is fast and straightforward. Pairing problems.
Neutral: Sound is rather mediocre, dull and flach.Knickmechanismus is not particularly robust, I do not believe in long shelf life. Reconnecting not always easily, transmission reliability moderate, occasional dropouts.
Negatives: comfort is bad, with me pushing the front edge after one hour painful to the ears. Is very loose, even while cleaning or washing slips the thing. And it still looks rather silly when it carries (a matter of taste).