Zotero: Should I Take The Plunge?

I'm thinking hard about diving into Zotero. This could mean big changes for me. First, I'm a fan of Internet Explorer. Second, when I do things like this, I go full in: I'm committed. Third, I have no prior experience with EndNote or related citation software. So here are some questions for my predecessors in this endeavor:1. What are my alternatives?2. What problems have you encountered