The biggest annoyance is that this isn't an issue I can replicate in the Apple Store. So they may have a hard time believing me.
This is the exact problem that I had tonight in the Apple Store. Here is my story.
Since 6.0.2, I have had wi-fi problems as far as downloading apps and music from the cloud. Other general slowness issues but those are the big two. I tried to download 48 songs the other day and it took about 3 hours and just 15 apps took about 2 hours.
So I called Apple support tonight just to see if they had any tips on fixing this issue before I went to the Apple Store. After going through everything he knew, the phone rep told me that it was obviously a hardware issue, that he would create a case number, and that once I gave this case number to the Apple genius I would get a replacement phone.
Well, I go to the Apple Store and I can't recreate the problem because the Apple Store, and I'm not joking here, has super wi-fi. The fastest speeds I've ever seen anywhere. I explain to the genius that I'm an advanced user of the iPhone and that I'm not one of those people who brings their phone in for every little issue.
Because the problem can't be replicated in the Apple Store, he sends me on my way. Since then, I've stopped at a McDonalds with attwifi and a Starbucks as well. Extreme wi-fi slowness at both those spots as well.
This is very frustrating and I've even considered swapping my unlocked 5 for an unlocked 4S. Because of the extended Xmas return policy I still have a couple of days to make that decision. I doubt I'll do it though. I'll probably just live with the issue.