SDR is by far my least favorite Extreme album. I have a lot of problems with it, production, sounding more like Dramagods (Even though I love the DG album) than Extreme, and just tons of filler. It really disappointed me, I hope their next album is better.
Pornograffiti, III Sides, and WFTP on the other hand, kick seriously ass. Each album is better than the last. (That's right, I think WFTP is the best album, I absolutely love it)