Guy bets Murray in a 500 and we are talking slams again?
50% of the Raonic threads are about him winning slams, the other 50% compare him to Isner/Karlovic.
Raonic is so much better than his peers because he has a weapon already. His serve is one of the best ever. However, he might not develop a ground game around it. There's no way of knowing.
I saw him play in Newport this summer, lost very comfortably to Ben Becker. His slam results so far have not indicated anything special.