Okay, no RE0 here, but I do have both the RE-Zero and the DBAs, and it's no secret I am a big fan of the DBAs. Listening right now to them via the iBasso T4/LOD/Touch (a combo of lossless and lossy), and the DBAs, to me, are the best bang for the buck IEM I have ever owned, and I have owned more than 4 dozen, including the much-praised SM3s, which I sold recently.
I am sure Joker will be checking in soon with his DBA review, he has a borrowed pair, but to me, they are just a little more fun than the RE-Zeros, but the HD phones are also very very good. I tend to favor detail and clarity over "warmth" but I don't find the DBAs sterile or anything of the sort. Read LFF's review, it says it all for me re the DBAs. Heck, I bought a second pair as backup, I like them that much. Is it hype? Who knows? But not to me. They are just what I was always looking for in an IEM. Decent price, very good comfort, clarity, details, balance. Durable? The jury is out, but so far, so good.