Sorry for not comparing the Redline against anything else.
I have tried the cable in an iteration of my system a few years ago. Like any cable company, the hype far outpaces the performance. If that sounds like I am criticizing Delta, I am not.
My impressions were that the cable was adequate, and for $159, I would say you made a decent buy. On the plus side, the cable would mate with a lean sounding system well, as it tended to be on the rich side. Detail, refinement, and speed were the areas where it wasn't so great. While many people will combine it in tube based systems, as that seemed to be the user Delta was targeting most strongly, I don't think it's a good match there.
In comparison, I found AudioQuest Midnight to be a better cable, and I find that cable to basically be "OK". I have to say that given the choice between it and AQ Type 6, I would opt for the Delta unless I had an already overly warm sound.
I don't have experience with most of the newer brands out there, but I can say that I think you would be better served by Analysis Plus. And, THE BEST CHEAP CABLE I have come across is by far Coincident CST 0.5. I like it a good deal better than my AQ Midnight, and think you could pick it up right here on Audiogon at a super price.
