Yes - I really liked the Laph 15 (killed many of bottle), I liked the additional spice notes, and additional richness of the 15yo. The 10yo is a very good beverage (and for the price, my top cheap Islay). I would like it if they brought the Laph 15 back into the US (if it was with the old <$50 price tag). Right now I would rather drink the Laph 10yo Cask Strength, than most of the (slightly older) Laphroaig's. With high peat levels, I think that cask strength is the only way to go. It allows the beverage to really penetrate the peat and get to the taste buds. Goes really well with a nice 70% dark chocolate.
If you do get one... let us know your thoughts. Interested in how it does vs the previous generation.
Cheers,
Mikey