Been holding off offering a "review" as I'm not too good at flowery reviewer-speak.
Anyway, I have the H118's and GT-40 and like them a lot. I listen to a lot of hi-rez internet and ripped music (320bit).
Many reviews use the work "neutral". Yep, that is a good description. Can wear them for a long time and not really want to take them off.
Pro's - neutral. Comfortable - some talk about the pads, and yes they are snug - not much room in there for anything but your ears. Nothing is either overdone or underdone. Nice detail - I hear things in the mids I don't hear on other sources (good speakers or my other phones). Things like breaths, fingers on strings, things happening in the recording studio, that probably weren't intended to end up on the recording. Very nice vocals.
Con's - a couple times (owned them now for a few months) I felt the bass may have caused the drivers to "bottom", but this was on music, that probably had no business being played on headphones. At the same time, I could feel the extremely low frequencies "pumping" my eardrums - in other words, the phones were trying to reproduce A LOT of air moving. Not as much "space" around the soundstage, but these are closed phones, and in my experience (admittedly not nearly as broad as other reviewers), open backs seem to create more space. In other words, sound is more in my head, not so much out in the room.
Other phones I have - Koss ESP-9, Stax SR-40, and a few others I won't mention.
I should mention the GT-40, but I have nothing to compare to - I've only listened to the H118's on the GT-40, and nothing else on the GT-40. Maybe the above H118 comments are partially attributable to the GT-40. I just don't know??
Bottom line, I listen to this set-up the most. In fact I waited to write this review until I knew it wasn't the "newness" that was the only thing that I liked.
Ok. Enough said.