To IDE or not to IDE

I’ve been looking into investing into a Ruby On Rails IDE, despite the fact there are quite a few free ones out there (RadRails, Netbeans). Does anyone have experience with any good one, paid or free? I understand a lot of people tend to use their particular platform’s text editor, but it seems that and IDE can help with some of the console tasks, etc. I look forward to hear what you guys have to say!