I have it on disc. The Wii controls are fun, but i didn't like that they changed some enemy locations and log entries in the first game. Hope you enjoy it, though.
It's because for whatever reason they used the PAL versions, which I will never understand. NOE made a bunch of annoying changes when the localized it, including the lore tweaks in the original game, difficulty tweaks in Echoes, and removing the word "damn" from Corruption. Retro has said flat out that the NTSC releases are the official releases, and I believe the North American Player's Choice version of Prime had all of the crucial bug-fixes, so you'd think they'd use those versions, but whatever.
Still, despite that it's a bad-ass collection. Plus, $10. I'll be rebuying it just for the sake of having on my HDD, along with winking and nudging at Nintendo a shit-ton.