Shure SE535-CL

If you never used in-ear, which I had not until I got these, you should realy try it out.
I will never go back to a monitor.
I use these mainly with an e-drum kit and find it works great.
One big reason for trying in-ear to start with, is that in one band I play all songs to a click track and have to use headphones. They just don´t look alright on stage and a lot don´t cancel noise well enough. You will not have any problems with that with these. Like regular industrial ear plugs these make you not hear what other people are saying but you also talk VERY LOAD :)
The sound is great, for being a small unit. Of course bass is not gonna be at par with a nice set of headphones but there´s definitly enough for a pleasant sound.
I can turn down the volume a lot because the noice cancellation is so good. So not as much ringing in my ears at the end of the gig, which to me is one of the biggest advantages with in-ear.
I was worried that I would have a hard time getting a proper fit, and at the first and second gig I was struggling a bit. But after a few tries they sit perfect and don´t move at all. There´s a lot of different "ear pieces" in both rubber, foam and plastic and many sizes.
So all in all this is one of favorite piece of kit.

I use these IEMs with my live band, both in a super-noisy rock settings as well as a less-noisy function band settings and they're great. I bought the 535's after my knockoff Chinese 6-driver IEMs died a little over a year down the road. These 3-driver monitors sound just as clear and loud and I know that I have a warranty for these and I will be able to repair them with confidence.
I took a star off for noise cancelling as this is of course not as perfect, as it would be with molded earpieces and another star off due to my ears actually getting a little tired of the earphones.

I use the Shure SE535 for research and development in spatial audio (3D audio). They are very good for this purpose and produce a close to perfect impulse response.

For those looking to use for daily commuting, they do take some time to put in, compared to apples new ear buds. But once in, the background noise goes away and all you are left with is the music.

When flying, they are also very good, it does a good job at removing the background noise from the aircraft cabin. They also sit flush with the ear, so that when you rest your head on a pillow, they do not cause any discomfort.

The SE535 loses one star on quality because the headphone cable became faulty at the plug end after 6 months, I believe this is a common problem, according to forums. This was replaced under warranty, I have not had any problems since.