I absolutely agree on everything you said. There are times where the m1 doesn't even sound bassy, but perfect with no eq. So it's great for different noise environments. Sitting at home i'm down to a SINGLE bass cut eq point. Not even the er4s is that easy to eq, although it is my favorite iem alongside the mh1 and f111 as well. The f111 is like a tease though with the fit issues sometimes. The er4s has so much going for it, but the mh1 is just easier to wear and more simply portable. I hate to say this... Bah! ....no...... Aaaah....... But I haven't even been using my er4s since i got the my1. And when i think about it, i don't really mind. I've compared them extensively and can easily make each one sound pretty much just like the other using eq. However, the mh1 has a generally more believable body to the sound when eq'd to perfection. The er4s has better treble depth and energy. But both are more similar than different in that they are very smooth from low to high, which makes them easy to eq well with only a few slight adjustments. Don't get me wrong, i love my er4s, but the sounds are both so good that i usually just grab the quicker more portable mh1.
I have never personally had as much issue with the cable as some, but i am recabling mine. When worn behind the neck and clipped, they don't bother me. The problem i have is wearing them around the ears. This completely removes cable noise for me, but the flat cable, controls and cable design cause them to want to flop back off my ears.
As for price, i do believe you get what you pay for most of the time. But i also think most iems are completely overpriced. I'd gladly pay the $300 for an er4s (i did), but the f111 should be closer to that price as well. As for the mh1, i'd gladly put it in the same tier of audio quality and thus a much higher price. But oh my goodness we don't have to! I think the idea that a cheap iem couldn't possibly be as high quality as a high priced iem is just silly. Is it likely? No. The higher priced iems have nicer cables and construction, but where sound is concerned the mh1 is up there.
People might say "it's too bassy". But guess what, every iem has a noticeable flaw area or two or three. The mh1 might be a bit bassy, but it's a smooth flat boosted region with no spikes or dips. And every other area is pretty much flawless. That's pretty bad @$&.
Anyway, i know there are many who will disagree. I'm just giving my opinion from someone (me) who values flat, neutral, analytical type sound. The mh1 almost blends that with what people call musicality.
My dream would be to have the an iem like the er4s or mh1, with very smooth response but a bass level between the two and a frequency response that sounds the same every time you fit it, and has a nice cable.
. Maybe i can get a job designing one someday. Ha!