Before anything, it is important to remember that these are open ear headphones, so they aren't going to sound quite as good or have as good bass as regular in ear earbuds.With that said, I love these. The tips sit right where they should, and the audio quality for music and calls are great. I have what I would guess to be "average" sized ears? They fit well and they don't fall off of my ears unless I get inverted somehow, or if I sleep with them on and toss and turn a lot. I can be in bed with them on while I'm awake, and have no issues with comfort on my side, back or whatever have you, hence me closing to sleep with them on.If you have smaller ears though, I wouldn't say to not buy them, but be aware of some potential annoyances. I bought my girlfriend a pair of her own, and she has pretty small ears. While they work and she thinks they're comfortable, they do look a little weird on smaller ears and sit a little bit more away from the ear vs how they fit me. It doesn't seem to have much bearing on the sound quality, but I think it's worth saying.Comfort wise, I personally have nothing but good things to say about them. I do sometimes forget they're there if I don't have anything coming through the speakers. They're really light, and don't pinch anything or have any points where they rub, even during exercise. It is worth mentioning that I wear glasses and have double pierced/stretched lobes, and while they have no issues with my specific setup, your mileage may vary.Overall, I would definitely recommend them if you're looking for open ear headphones and you want better sound quality and more bass than something like bone conduction headphones. I've had my pair for almost 2 years now and use them almost every day and have no issues with the build quality. Some reviews make it seem like they're super delicate, but as long as you don't throw them around, crush them under anything, and treat them the way any electronic should be treated, they will absolutely last.