Do yourself a favour. Don't buy this phone.

yes, ignore whatever you think is biased but some of the problems here are real problems. For example, my 820 has a 4-6 seconds shutter lag, I have a Class 4 SD card (so I'm not complaining), but my friend with a Class 10 SD card has the lag too. If you're one that needs to take many photos quickly, you might need to purchase a good SD card with your 820 (UHS).

yep, I have the same problem too! Also photos app and settings app launches a little bit slower. Can it be that portico update fixes this?
 
My 820 has been awesome and I highly recommend it to everyone (even over the 920 and the 8x).

The OP is either a troll or has really bad luck.
 
The OP is just having a bad luck. I mean, honestly there's no difference, be it with Nokia, HTC, Samsung or even Sony, they all provide good sometimes rubbish services and it all depends on your luck. I've experienced them myself and I know... Sorry about your experience with the Lumia 820, but since you've moved to HTC 8X, I wish you all good luck and be happy with it because many others in this forum experience the opposite - bad luck with the 8X and happy ever after with the Lumia 820/920. It's all just luck. However, you can always complain, write a letter or just do anything and let Nokia know the real issue here with them.

Will this post stop people from buying the Lumia 820? No, I don't think so...