I have Rume, and I can't recall anything else quite like it. I think SL Fille en Aiguilles smells somewhat similar (sweet resinous pine). I'm not familiar with myrrh scents, but I imagine there's one out there that might be close.
For some reason, smelling Rume instantly reminds me of Christmas and winter, but in a very different way than something like Burberry London (which also reminds me of the holidays). I might have to take my bottle with me if I go back home for Christmas.
By the way, I love that ad copy for Rume: "...the desire to constantly seek out, experience and explore. An idea that contentedness is a poison and regret is the aftermath."