Absolutely try it. The first time leveling (quest, don't do dungeons much), the world feels huge and new and is, I bet, still fun. The nice thing about WoW is that you could play for a couple months, pause in July if you're traveling, pick it back up and it's still there.
I didn't have in game friends to start with aside from one person who I knew slightly. She did get me into her guild which was kind of nice since I had people whom I could ask about things. If you find a nice guild, join up. IF they're asshats, leave. You can solo all the way to 100 so you won't be blocked or dependent on groups for anything.