Ok ok ok...before I even begin let me start with a few things that will be good to know:
1. I have always LOVED Shure and have been the first to sing their praises to anyone who'd listen.
2. I have always thought that Monster was part of the evil empire that consistently overcharged by several fold to feed their own hype-machine.
3. As much as I have respected everything Dre has contributed to hip-hop and the recent history of music in general, my gut reaction to any celebrity endorsed product has been nothing short of reverse peristalsis.
Now that that is out of the way I'll cut to the chase. I had accumulated about $150 in apple gift cards and honestly had nothing that I really needed or wanted from the store. But, my old Shure E2Cs that had served me so so very well were falling apart physically, despite still sounding brilliant after over four years of heavy use. So I looked immediately to the SE210s as a suitable replacement and upgrade. Well...after dropping nearly twice the price of my old E2Cs on the 210s I was sadly and severely disappointed to find that my very old and abused E2Cs sounded better, and not by a slim margin. I gave the 210s a week of heavy use hoping they'd break in a bit and surprise me. As my 2-week return period came close to an end I reluctantly gave in and returned them to the apple store, ready to order several pair of similarly priced headphones from the online store to do a side by side with them all before selecting one worth keeping.
Enter the newly arrived (that day) Monster Beat Tours. Before finishing my return I was told that these were in stock and I decided I should at least give them a try before blowing them off as nothing but hype...especially after being so wrong about the shures. Well...in a nutshell, they blew away the 210s. And my E2Cs. By a LOT. This was side by side, listening to the same track played from the same device. I tried everything from hip-hop (Omega Watts...Giant Panda...Roots...etc.), to punk (Operation Ivy), alternative (Broken Social Scene), and Jazz (Miles Davis, John Coltrane). Sound was rich, full, and warm, with a tight but definitely present bass. One of the biggest things I noticed was the definition that each instrument had. Bass was bass...yes...but you could clearly hear the strings of a bass being played compared to an electronic bass in another track. It wasn't just a tone, it was music the way it was recorded without degradation. I never thought I'd capture that in a pair of sub $200 IEMs. Needless to say I happily bought them and quickly got over my disdain for the packaging and image that were being so heavily pushed by Monster; this was one product that at the very least exceeded my expectations and I would even suggest lives up to their own hype.
So...are these the best IEMs for $150? I have no idea. I've heard that the Sennheiser MM150 IPs are great, better than the Shures as well. I've read of many other options in this range. I do know that these are great for me. Much better than the Shures, and good enough for me to stop looking and comparing.
Are they overpriced? Probably. But what I now know is that pretty much all of these are overpriced. At least in this case I feel satisfied with the quality I'm getting for the price I've paid. That's good enough for me.
Good luck in your quest.
Chris
Oh...regarding fit - At least as comfortable and sound isolating as my 210s were (using the smallest bud - the incremental tiered buds were junk for me).