I have purchased many phones off craigs list and had nothing but good experiences. THe guys who would not meet me at the verizon store were most likely selling bad product. Like in all other area of your life a little comon sense goes a long way and if the price it too good to be true, it usually is.
Check phone outof case, check volume, charger jack and head phone jack. Next check Meid, if clean move to your account as you pay this way they cant call is stolen if its on your account already. Someone I know bought a phone, checked MEID, went to avtivate days later and it was on black list. I think the kid claimed insurance for lost phone. My buddy had an e mail or text screen shot of the Meid with the text or e mail going over the deal and agreement to sell. My buddy filed a police report, (he had kids cell number they got the rest of the info) eventually got phone off black list. Verizon would not get involved, just said, we can not activate phone on black list and if he was in the store (my friend) instead of on the phone doing activation he would have had it confiscated by Verizon! After a long while it got resolved. Assurion puts MEIDs of all claimed broken / stolen / lost phones on the black list so they can't be re-activated. Kid claimed lost phone but police had who text or e mai trail with screen shot of MEID blew that out of the water. Explain that to your MOM and Dad.