Pros: Good bass, clear sound, sturdy flat tangle-free cable, handly controls, microphones are better than that of stock IEMs
Cons: these days you can find better SQ at much cheaper cost, requires powerful amp
I wanted to rate it 2 stars, but would have been flamed if I did that. There is also the fact that I got it cheap, and you can too.
I have no real complaint against this headset other than its price. When it was introduced, it was value for money. Nowadays there are stock smartphone IEMs that offer nearly as good or slightly better sound quality, well maybe not the bass, but bass is not everything.
So if you already have an MH1, stick to it and do not purchase any new low end headphone hoping for an improvement. But, if you are planning to buy an MH1, please don't. Instead get a Sony MH750.
The MH1 is for bassheads in general. It requires much more power than the likes of Soundmagic E10 and you need to keep that in mind when using the MH1 on a PC. USB powered DACs simply can't play the MH1. I am talking about the MH1, not MH1C or MH1A or other variants. I am not sure whether there is a difference, but if Sony dropped the impendance in the newer models, it might improve things quite a bit.