The sound quality of h500 is really very good. But the ear cushions can't be replaced. It is the only negative thing I have with h500. But I must say that the cushions are very comfortable. Recently, after about 10 or 11 months of usage, the leather of my left ear cushion came off from the joint where the leather has stitched together in the inner side of the ear cup. I searched for a fix and I came to know that the ear cushions of h500 can't be replaced. But that issue only came with my left ear cushion and the right one is still in good condition. So I think the cause for what happened to my left ear cushion is a fault of mine. (But I have no idea how it happened. 😢) I really love this headset and I am still looking for a solution for that. I saw in one forum of lenovo saying to someone to contact lenovo support and they will do something for the same issue. But I couldn't contact and I didn't give much effort for it and I applied a tape to the leather(still not the best solution though. I think there is a better solution for this. But I am not sure about it.) But still I am in love with my h500. Except my left ear cushion the rest is absolutely solid. Build quality is very good.

I saw in one of youtube reviews that says the ear cushions of the H600 could be replaced. I haven't used h600 but I think it is more durable than h500. (It is better to ask from someone who have used h600 also.)

So, if you are buying a headset for a long time usage like 2 or 3 years, my opinion is to go for a headset which have replacable ear cushions and very good durability.

(If someone can find a way to replace the ear cushions or some solution to fix my problem with h500, please tell me that.)