"Half-Speed and other Audiophile grade vinyl is worth it if the original record was a well engineered recording."
I have half-speed mastered Exile On The Main Street by the Rolling Stones. Well, it could be worse. Just not by much. Confirming the above quote.
As far as Better Records go, there has been a recent thread with multiple customers sharing their experiences. Bigger sample brings more objective results. One of them is that records do come packaged impressively well.
Better Records White Hot Stampers: Now the Story Can Be Told! | Audiogon Discussion Forum