When i first tried an
OR15 (I was actually demoing a Les Paul Custom) I was like "meh, rather generic" but then a couple of years later I tried 1 again and my jaw dropped. I bought one in May 2016 and have not looked back.
I have zero experience with the Dark Terror, but I can tell you, that the
OR15 has a fantastic master volume and sounds really good at "bedroom volumes" (ie, mid to high 80s db level). One "quirk" in the 7 watt setting is that when you increase the gain, you hear what sounds like a slight scratchy sound (easily confused for a scratchy pot) which is simply the new gain stage kicking in.
I really like the
OR15, and it is terrific for old school hard/heavy rock. I suspect it will do the newer stuff too, but I am not well versed in the newer higher gain stuff.
EDIT: I was also 1 of the ones impacted by quality control issues with my first 1 (notice the transformer), but my dealer got it replaced, and I have had zero issues since
