New PMV A-01 Mk. II owner here. I've had them for a couple of weeks now, and have been enjoying every moment. My current budget doesn't allow me (and has never allowed me so far) to be privy to high-end audio. I own one full-sized headphone - the ATH-M30 - and several budget KZ IEMs - ATE-S, ZS2 and ZS3. My source is just a simple HP laptop, no amps or external DACs. This is just to show you my background.
Now, there are many user with more experiences ears out there, but here's my two cents: in short, these are great. I've picked them up after several user recommendations, and quite stellar reviews. And I've got to say, this didn't disappoint. They're above the KZs, for sure, and I like them more than the ATH-M30 - though I generally prefer IEMs over full-sized headphones. I think these are a great choice for someone on a budget; someone who likes good sound, but isn't into collecting IEMs (buying model after model after model, just to have them lie in a drawer). They really offer an amazing amount of clarity and detail at a fantastic price.
These can comfortably be your ultimate IEM. I seriously think that whichever IEM you buy within a price of a few hundred $ range will offer only marginal improvements in the sound quality. At least, I know that I won't be buying any more IEMs, not until (or if) I ever go high-end price-wise. Until then, I'm loving the PMV all the way!