Have it for around 1.5 years, used it almost every single day. I am not a sound fanatic but appreciate a quality sound, so my budget is usually noticeably higher than average price for headphones/earphones. Used headphones for music, games, calls and movies.Pros:- Great sound quality at this price point- Isolation is good- Range is good too- Very comfortable with or without wearing glasses (if you have soft fabric earpads). Didn't wear original earpads because I prefer fabric ones. My head or ears never felt tired even after many hours.- The buttons on the headphones are nice, easy to find without looking and easy to press- Surround sound is made really well, even though it's artificial. You definitely feel in an open space.- The battery holds wellCons- Earpads it comes with are OK but the best experience you'll have is with soft fabric. (Buy earpads for RS185, they fit RS175 as well.)- I believe some people will feel that headphones press the head a bit but that feeling should be gone very soon. Some probably will appreciate this because it offers a better isolation. So this point is both - pro/con.- When you change sound 'modes' - bass, low-high surround: the sound disappears for a split second, wish it wouldn't but I believe it's due to technical reasons,as the transmitter needs to send 'custom' sound to your headphones. Personally, I rarely used different modes because the headphones are just simply very good.- After taking off headphones from the base, you need to press and hold the button on the headphones to turn it on. I wish a user would need to double press or just simply press the button, because it's a bit tiring to press and hold a button for 2s when you put headphones back on the base frequently.- If sometimes your headphones go to sleep, you need to put it back on the base to reconnect.As above, there are 3 modes (bass, low surround, high surround): Bass gives more bass (of course), nothing unusual, if you are ready to sacrifice all other sounds for more bass, just do it. Used surround sound in games, movies - an interesting experience, but you can hear all your enemies around really well even without this special mode. Honestly, you get used to the surround sound so quickly, that you forget even having it, so didn't use 'surround' mode often because I prefer natural sound and just wanted to buy good wireless headphones. Overall, really happy with my purchase, would buy again.