I have spent too much time and energy dealing with a warranty replacement for my iPhone.
The phone started misbehaving on Sunday evening or Monday morning, rebooting itself incredibly frequently. I thought it was doing better Monday night, but Tuesday morning it showed symptoms again, so I took it to the T-Mobile store where I'd gotten it last fall.
After eliminating a couple of known issues (low battery charge and cold), and confirming that there was no water damage, they gave me the choice of going to the Apple store to see if they could do anything, or paying $20 for a warranty replacement, plus an optional twenty more for overnight shipping. Tuesday was a raw day, windy and rainy, and taking the train downtown and back, with a fair chance of winding up back in Harvard Square at T-Mobile, only wetter, didn't seem like a good use of my time.
I got my new, or as it turns out refurbished, phone after lunch today. If this ever happens again, I will make the store transfer my data over to the new phone, even though I have it backed up. (They offered, but it seemed to make sense to just come home.) If I'd done that, they would have had to install the OS upgrades, rather than me doing it, via an iTunes upgrade I hadn't bothered with, and worries about whether the backups I needed were there. (Before the upgrades, the only backup iTunes would show me for the phone was the basically null one it had done twenty minutes earlier.)
So, back to normal, for whatever "normal" means these days (which is a comment both about the larger world and about the fact that I have a $500 pocket computer and communicator that comes with a one-year warranty), but I'd rather have spent that time on paid work, or been playing with the cats.