Very proud to say that, out of 194 creds and 20+ years of goonage, I've only been on 3 SLC's. Well, Standard SLC's anyway. 5 if you count Odyssey and Kumali.
Generally speaking, I actively try to avoid them. In my book, if a park even has an SLC, it's probably not worth visiting.
The 3 I've been on are Condor, Flight Deck and Infusion. (Limit spited me. Yay!) I'm reliably informed that they are 3 of the absolute worst examples out there but to be honest, I couldn't really tell 'em apart. They were all a bit 'meh'. Not as horrendous as some people make out, but very mediocre. And a bit bumpy.