Just got a pair myself. I can see why these will either be liked or not. It will depend on who's using them. For someone highly dedicated to SQ and an accurate, analytical response, this person will not like them. For someone looking for a well balanced, casual listening experience and an mild upgrade from a cheap earphone, this person will like them. They have excellent frequency response extension out both ends but a 5dB bump at both 100Hz and 10kHz that are effectively a build in Loud feature. For anyone who always uses this in their car stereo or home stereo, well, it's built into the response of the HJE900, will certainly be likable for some. This is not a very dynamic, articulate, or detailed earphone. It is somewhat edgy but for the most part smooth, almost laid back. Some of you may find it overwhelming, but this is due to the low dynamic range. Quiet information is almost as loud as the loud information, so you get a lot of stuff thrown at you at about the same intensity. I typically call this "noisy." Earphones like the RE0 or DBA-02 are like this as well. To some this can make the earphone sound a little aggressive. This is partly why the HJE900 does come across decently edgy despite being smooth, almost laid back as well. Sound stage suffers from a lack of dynamic range. A lot of depth is lost from this. Close, loud stuff is pushed away and quiet, distant stuff is pulled forward, again why an earphone can sort of sound noisy and aggressive, to some overwhelming. Some could call this more revealing, although I do tend to find revealing is better done through separation and level of detail where sounds can be individualized and unique in their own space.
These are going for about $100 now, cheaper used, and they are well balanced, well extended in response. They do offer a robust, decently natural sounding note, not great SQ but likable, and is a budget (to some) earphone. For anyone who hasn't used a high end earphone and is coming from cheapies, these will be likable and do offer an upgrade and likely numerous improvements to what they're used to. For someone like me who has used better, I do see all the shortcomings. However, for a $100 product, they aren't bad. I personally may lean someone to a few other options at $100 like the C751, Custom 3, or RE-ZERO which all have superior SQ at the same price point, but it will always come down to personal preference and what you seek. Is the HJE900 an amazing device? No. Is the HJE900 good for a $100 product? Yes. Are there better options at $100? Depends. It all depends on the properties you seek. Because I am an SQ geek, I'd just tell you to stop being a fool and buy the Custom 3 already, but I do see value in the HJE900 for individuals seeking what it offers.