Seems like a pretty good review to me.
The facts (decibel reduction) are what they are, nothing to debate there. The comfort is a matter of preference and individual physical characteristics. My only complaint is that I wasn't entirely sure which High Def earplugs you were referring to - the first Etymiotic google result is a $300
pair of active noise canceling earplugs.
I wear
Surefire Sonic Defenders. Affordable, reusable, and quite comfortable in my ears. They're far better as riding ear plugs than they ever were on a gun range - race guns are
loud.