Before I begin, I know most people in (most) communities hate the Bose. I have read a few places trying to understand (as a newbie to this community) why people hate Bose. It is overpriced, I agree. But I have my reasons for putting it up against the Shure, where, for most people, it doesn't below. So please hear me out.
I haven't tried the Shure SE215 but for a price of ~100 USD, it seems like a great buy. If you have better suggestions, please feel free to provide them. It's got good sound for the most part though I've read there are a few not so perfect things.
The reason why I put the Bose IE2 against it is simple. Comfort. I have tried them out and they are comfortable to use. They stay in place and give me decent sound. I was in a quiet environment (at work) when I used them and the sound was good. I know it doesn't provide noise isolation as well (because it really isn't meant to) but that really isn't my primary concern.
From all I've heard (and read), the SE215 would decimate the IE2. But the fact is, I haven't worn them. I had tried IEMs ages ago (very very cheap ones) and they kept popping out of my ear or caused me discomfort. I'm not sure how the SE215 would feel in my ears and I can't try them out anywhere because they aren't sold in India. I have a friend bringing me a pair from the US (so if I don't like it (in terms of comfort), it's a few months wait not to mention 100 USD wasted).
I'm not an audiophile. I don't understand the many of the technicalities but I know I like sound which is "rich and warm" (if that makes sense..). I need some bass, but not too much of it. I do not like bass being muddy.. I don't like it over powering lyrics. But I don't like lack of bass either (I'm fine with having to EQ my player to give some bass). I like a good balance between bass and treble and clear vocals.
So, you now know my requirements and the conditions I'm under (I'd like some noise isolation but not at the cost of comfort and Shure's aren't available in India, Bose is). I seek assistance from those far more knowledgeable about this than I am (for now, hopefully).
I'm free to answer any questions (to the best of my abilities) you might have to help me make my decision..