Honestly, my only issue with multiplayer is that everyone votes for Halo 2, almost without fail. I rarely play any other games on that sodding disc just 'cause everyone, for some ungodly reason, loves Halo 2 so hard that I've lost any tolerance I've had for it.
Aside from that, I haven't really felt the need to play it; the multiplayer gets waaaayy too dry (for the reason listed above) and the Campaigns are.. well, I've already beaten them all, what's the point of doing it again? I love Halo, but I don't really care for boosting my statistics for the campaign nonsense 'cause all anyone cares about is Halo 2. I haven't had too many issues with the Multiplayer (sure, there's lag here and there, but there's lag in every video game), but then again, I've only really played after the patches that were trying to fix the mess.
So, altogether, I find it humorous when I find posts like these and tend to share my blasphemous opinion (Halo 2 is overrated) for kicks and giggles. I mean, these games weren't meant to be on the same disc; it FIGURES that there's issues with it. Maybe I just have better patience than most.