It’s actually a very nice product, as evidenced by almost every review, including from many audiophiles. One thing everyone agrees on is that they are very comfortable, especially the mesh headband, which you don’t feel at all. And I can confirm that this is the case. You don’t feel the head band, let alone the “2 hard bands.” The power button is a non-issue - take the phone out of the case, leave it on your desk, and after 24 hours you lose 2% of battery. So what?
As for “too heavy“- I haven’t seen people say that. I’ve seen them say they are heavy, but not “too heavy.” They are certainly heavier than, say, Beats or other lower end cans. But they don’t weigh more than many high end headphones, like master & dynamic, sennheiser, Hifiman, meze, etc. I agree, these are not good for workouts or the like, but that’s not the goal of these headphones.