I watched the redemption dvd last year. as far as I can remeber right now, the quality was good. I found it difficult to sit through the whole movie, though. some of the acting is so awful it's beyond words, and polsellis usual "challenging" direction really put me off. The stills from the movie look more interesting than the movie itself.
But I found Delirium almost unwatchable, too. So if you do like this one, you should give the redemption disc a try.
It's dead cheap, but also ugly as hell, like all redemption dvds. they've got this awful nineties-goth-look. Wingrove really needs to find a new aesthetic, I think. I always cringe when I spot a redemption-dvd in my otherwise pristine collcetion... ;-)