I've been testing it for a couple of days with no real issues found. It works great actually. There's a bit of fun with the redistribution between routing protocols, but that's a general thing
The only real issue is the lack of Sham-link support on OSPF, but I'm thinking that it can be solved by making VPLS circuits instead of sham-links. I'm testing that Monday.
The road to hell is paved with good intentions.