Even when I moved to better cans I still didn`t mind the HD280s. With the use of expensive ones I can better see their flaws. They are actually best for blocking out sound, passive noise isolation - you won`t hear anyone talking. They are also great for recording and editing but not for mixing. Bringing them everywhere with myself and not handeling with care convinced me they are well-built.
Being `closed` they were great for outdoor use in winter, keeping my ears warm. Their large cups will fit almost everyone. They have a flat frequency response and less base than someone would expect. But have an accurate reproduction. They can become uncomfortable after some time using them and make your ears go red. Cable isn`t detachable but it is sprial, which is good. They are not an ideal but still one of the best for the price.
I love them. Most of the times I use them when I`m mixing live sound. In my opinion the strongest asset they have is precise and defined midrange and clear highs. Bass response is OK, but it could be improved. They aren`t much loud when you plug them inside the phone because the impedance is too high. When plugged into computer they give detailed sound but again bass probably isn`t as good as you would expect. They don`t bust the lows at all. They just aren`t built for that. But being super accurate from time to time I use them for jazz and classical music listening. If you try to use them for rock or electronic music it won`t be the perfect match. All in all, probably the best ones in that price range.