The firmware isn't slow and buggy. The game compatibility is at 100%.
Let me clarify, by "buggy" I meant to highlight the problems people are having. I, like quite a few others have found the media player stalls for upwards of 40 seconds while loading a large folder of songs in the inbuilt media player, which also does not play the better type of DPG videos, then there's the people who have changed skins and had the firmware stop working when they try to revert it, after that there's one or two other things, it is buggy but not terribly. it should be noted as well that there are even reports of the Real
Bricking DSs so while isolated and apparently rare, there are also some more
serious bugs
And that should all also be put in context, the M3 Simply/ R4 have been on the market for a while and have had their bugs ironed out in that time, as to whether the bugs will be ironed out in the Real is yet to be seen, but it is too soon to pass a comparative judgement on the final status, for now
yes the simply does have some advantages so does the Real, and for me personally the Real fits better due to my using it for Music playing, so while I need only a gig or so for the games i play, I like to have a big playlist on there as well so SDHC for me is still essential regardless of how few game i need
And the compatibility is 100percent with the games as far as i know, it is not however supported by some homebrews, case in point i arguably one of the most popular and important of those is Moonshell, which does not work properly on the Real's at all
Now as for saying the interface is slow, well it is slow. not just the amount of unnecessary steps needed, but the fact it wont let you turn off things like the options page that loads up every time you select a game
But in the end what i was trying to mainly illustrate is that no one can offer a definitive comparison for someone else at all anyways, different people want different things form their cards, I wanted music and megaman games so the Real gives me SDHC for playlists and added GBA support for those shameless cash-ins of the megaman series on the GBA, but if someone
just wants to play DS games then you should get a simply, for
simply that
[edit]:Spelling