GoRails (https://www.youtube.com/channel/UCIQmhQxCvLHRr3Beku77tww)
Drifting Ruby (https://www.youtube.com/channel/UCxJaNyXCQw0mghY0hA1wA9w)
Railscasts Reloaded (https://www.youtube.com/user/RailscastsReloaded)
Oh I totally missed his reply in this thread https://news.ycombinator.com/item?id=20718729 (currently at the top)
If you already understand MVC (for example if you’ve worked with .NET’s MVC offering) reading rails guides will serve you very well.
Yes, learn anything else other than Rails or Ruby. It was never good, just well promoted. I haven't checked on it recently, and I'm sure there are improvements, but there are so many better options today (e.g., .NET, Python, Node), it's hard to see a good reason to take up Ruby or Rails.