This is actually my second set of these :-) On the first set, I found that the right earbud wasn't charging but I bought them locally and so I ordered a second set via here. It then dawned on me that it might contacts and so I use contact cleaner and now those are fine :-) I decided to keep both sets :-) The JBL app is really nice and it actually works quite well, though I have it hang the odd time. I have a Samsung S24 Ultra. Sound quality is what I would expect from JBL. Excellent. I use mine mostly for calls and listening to vocal stuff like podcasts and for that use, they are excellent with the EQ set to vocal. For music, they do tend to be more high and midrange than bass but still pretty good. I have both a black set and white ones, and the app displayed the colors which is neat. There is an equalizer in the app and that works well. Call quality is very good. Battery life seems to be quite good so far. The case seems to be very well built. They fit my ears very well with the default earphone covers and the chance of them popping would be quite slim. My measure for this is during the commute :-) When you take them out of the case, they connect very fast which is nice. I've been using this a bit for my meetings at work and they switch out quite well though the odd time you do have to connect manually.My only nitpick with this is that IF you have slightly dry hands (and I do), they can be a little tough to get out of the case. They are very comparable to more expensive sets.