For what it's worth I was firmly in the 'never in a million years would I buy this' and then, quite by chance, found myself with no player (yes, I'm that parsimonious I only want one-my iPhone 4 is ok but it's a phone) and a heap of money.
I bought this because of serendipity-try as I might-something went wrong with every deal to replace my Titan. Someone/thing was speaking to me. I needed a player and hadn't heard a decent one for 21 days. I was in withdrawal.
Lol I didn't saw myself buying this either... the plan was to wait until I can demo both this and the Calyx M (and see how X5/DX90 performs) before jumping. I even managed to dodge the bullet after my first AK240 demo. But the mistake is to demo it again. I didn't remember from the first demo it can stand toe-to-toe in SQ with the 901 but the fatal second demo proved me wrong. And with AK240's much better built, finishing, aesthetic, I I knew any further resistance is futile inspite of the crazy price. I would have to agree with warren's view that the AK240 FAR exceeded AK120. It isn't even a fair comparison, as just I similarly felt AK120 fell way short of hm901's SQ.
For now, it is the ONLY player that check ALL the boxes for a DAP from SQ to firmware/UI to built quality/aesthetics to feature set for me. Well the ONLY complaint/wish list I have for the AK240 is the ability to install third party streaming apps like Spotify for having the best SQ possible for my music discovery. I just wish more manufacturers would continue to improve and innovate so we would have something as good but a lot more affordable. Say if we can just mix the best from Hifiman, Fiio, and iBasso..... wow! I can dream, right?