They are a great monitor, very detailed but not 3d, Soundstage isn't better than the jvc fdx1, they have 10 ohm impedance, and they barely have treble.
On the flip side, the bass is great for a BA, they are extremely comfortable, and the cable is finally fixed so you can buy a pair knowing it won't fall out your ear at random.
I use it on planes to listen to music because the jvc doesn't cut through the noise of the engine well enough, but without my radsone earstudio or a dedicated DAP with 1 ohm output impedance, the MD+ sounds like crap.
I prefer the jvc fdx1, but at $150 you might as well buy it knowing you can sell it for $150 later if you don't like.
Imo, it's worth it for the comfort only, but it will never be my only iem/headphone.
Edit: lots of typos