I've been using an original v1 R4 for my DSL without any problems. After I got a DSi, I bought an M3i0 for it. For the most part, the M3 works nicely, but there are a few issues that I've encountered after switching: 1) Soft reset for a certain game (Mahjong Fight Club, in case you want to know) doesn't work in M3 Sakura, but it works in R4 2) Soft reset patching is not automatic for all games 3) Sakura lacks a one-button save backup/restore feature 4) You can't delete files in Sakura without using homebrew apps. Now, all of these are not deal-breaking problems, but I did use these features a lot with my R4, and it would be nice and convenient to have them again. I do like the Sakura loader, but that's only because of how it looks, so it's not that important. As long as the loader is not slow and clunky (like TouchPod), I'm fine with it. So anyone have any suggestions as to which one I should try?