Just bought it. Doing so entitles you to a steep discount on the IFR proficiency series, which also looked too good to pass up.
This real-world, practical info is pure gold, IMHO. We shouldn't stop our training and education after we get the certificate/rating. For the cost of 1-2 hours of instruction, you can have many hours of well-produced, highly focused material.
I have no horse in the race here, just a big fan of stuff like that. I was tainted by some pretty poor instructional videos a while ago during my training that offered very little in the way of practical insight into the decision making associated with being a pilot. This stuff seems like a big step up. Anything that Scott D has worked on merits a close look
His weather stuff is just awesome. I bought the Skew-T Log P training course over Christmas and am very glad I did.