I kinda liked it, and Rei's henshin was great. However, the only glaring (and I mean GLARING) change from the manga this time wasMinor; In the manga, when the watches come out of the game, Luna grabs then says, "With some minor modifications these could become communicators!"..or something like that. She doesn't do that in Crystal but ya get the feeling Luna did do that..Spoiler: show
Anyway next ep should be "Usagi gets a new tiara" as well as they FINALLY gave us the english version of the next ep spiel everywhere! That had been cut off on the other three eps. And yeah, Princess Dia!
[Edit] Okay, found the henshin video. My standard spiel applies, if you quote this post, please remove the video in case Toei gets nasteh. They have been nasteh too often with Pretty Cure henshins, so I'd rather be able to remove it if the video goes dead.