I am writing after 2 years of its usage. I also own cx 180 ii and cx 275s, so trust me i'll be completely honest. Lets start!! When it comes to sound clarity and balancing, they are better than 180 and 275s. For example the drum rolls we hear in EDMs mostly, their sound is very harsh in 180 and 275s. You cant hear those type of songs on high volume as you will have a headache. People do say that cx1.00 is high on treble. But no, it is not, believe me. Now comes the bass. First of all, the most important thing. If you use google play music then change your player immediately. No earphones will sound good in that player. I personally use Poweramp. It is the best. So again to bass. The bass is almost same in all the three earphones when it comes to mids and lows. And seriously one cant tell any difference when using them even side by side. But the clarity of sound is very noticeable. You can hear loud music at high volume in cx1.00 as the sound is smooth. But not in the other two. I am not sayung they are not at all good but yes they sound harsh at high volume. Remind you all, i use poweramp and i am reviewing it on that basis. Try poweramp its the best. So guys, summing up. Just go for them. Instead of 275s and 180, go for these.