In July, I upgraded my OG Evo4g in order to get the Galaxy nexus which was on sale back then.
The first phone had a ton of stock apps force closing randomly (this happened right at the sprint store as the tech was activating it)
Second phone on the same day seemed okay, took it home and started experiencing a ton of dropped calls. Thought it was an issue with the tower but only the nexus had this problem and when I took it to sprint they replaced it claiming it had a bad radio. Sprint offered me an Epic 4g touch or a LG viper. I took the same model because none of the above compared to the Nexus in terms of specs and features.
phone #3 (Which I still have right now until I get it replaced tomorrow) Won't send text messages and constantly sends all incoming calls to voicemail. I filed a network ticket to see if it was an issue with Galaxy Nexus phones but it turns out I was the only one experiencing this issue. The galaxy nexus phones at 3 different sprint stores were working fine.
Sprint took a look at it for around 3 hours yesterday and they couldn't determine the problem so they once again low balled me offering me a refurbished LG Viper or a Refurn Epic 4g touch. I declined because none of those phones come close to the gnex specs.
Phone #4 arrives tomorrow, I hope it works I'm digging jellybean
Sorry for the long post, thought I'd share my experience with you guys