I want to share my experience with DJE-1500 with you guys.
I spent a lot of time finding the IEMs that would replace my Koss PortaPro for loud environments- wanted a portapro like signature IEM with very good noise isolation. Tried IE80 (excellent sound, bad isolation), Shure SE425 (excellent isolation, unnatural trebles), Sennheiser Momentum in-ear (cable microphoincs, sibilant trebles).
Based on review by dweaver (thanks) I ordered my 1500s and I can say I love them. I cannot really find a flaw to mention.
Sound: Great
The bass is strong, full bodied, but not offensive or overwhelming. Fully present even at very low volumes, I can enjoy it anytime, cool.
The mids - the vocals and snares tend to be sometimes "shouty" and not so smooth with some artists (especially Sting), which bothered me a little, but otherwise they are very natural and warm to me.
The treble - exactly to my taste. With good extension and sparkle, nicely detailed. With Comply foams need an EQ treble boost.
Soundstage is unbelievably good, easily comparable to my portapro. Wow.
Isolation is by far not up to Shure SE line, but it is not bad either. With supplied Comply tips they isolate very nicely though.
Ergonomics is superb - I like wearing them over the ears, they are so comfy that I forget wearing them. I dont use the adjustable position feature. They are big, but I dont mind at all. The fabric-covered cable is the icing on the cake. The pioneer guys must really like what the are doing. And the cable is removable (yay!), so an android compatible remote cable is no problem.
For the price (140 EUR) these are really excellent value.
Hope my "review" helps.