Like I said.......
I have had this phone from day 1 and have enjoyed it very much Thai has nothing but problems with his NXS4g and Each new phone buyer should make up his or her own mind. As with any device you will have good and bad reviews. My review is GREAT is all areas WiFi phone web surfing camera all are good for me no battery problems nothing wrong at all.
I have no problems with my Nexus S 4G PHONE.
It's a bummer you have had such bad luck better luck with your other phone.
Now back to the OP:
you will find many results good and bad. My everyday use of the Nexus S 4G has been great.
Most of the time people come to forums when they have problem. Or to try and tweak the device(ROOTING) Most of the time you will not find users that are happy searching forums for help with a good device. As you can see. Some good and some bad. Good luck
BTW: The new Nexus<Still made by Samsung
on Sprint is a great device and has support for LTE.