I just tried 2 sets, one on my 5 and one on my 4. I like them for the most part. I'm mostly a Sadowsky user and comparing them to the Sads, they're not as bright out of the package as the Sadowsky SS but they seem to hold they're brightness a little longer IMO, but that could be due to playing them in the winter and not in the sweaty Summer heat too.
One thing I noticed is the tension difference. They are tighter than any string I've tried. It Makes for a nice, solid B string but I had to take my bass and get it set up for these strings since they raised my action up substantially. I didn't have to make any adjustments to the 4 string Warwick, only the 5 string Valenti. The Warwick neck didn't move at all, but of course it's a thick neck and the Valenti neck is a bit thinner. Grant it, this is only my second set but so far I'm pleased with them. I'd say they're worth a shot.
Here's a thread I started:
Elrick Strings??? There's not a whole lot of info there but there's a couple of posts there that may give you some insight.