If you follow that route, you should get most of the way into Edinburgh without seeing too much traffic, from what I remember the roads were a bit pot holey so watch out for that. Traffic can be hit or miss in Edinburgh but not as bad as London from what I remember, watch out for the Tram tracks on princes street and Leith Walk as that could be a bit of a rim bender! Lots of nice pubs and bars, have fun :)
If you follow that route, you should get most of the way into Edinburgh without seeing too much traffic, from what I remember the roads were a bit pot holey so watch out for that. Traffic can be hit or miss in Edinburgh but not as bad as London from what I remember, watch out for the Tram tracks on princes street and Leith Walk as that could be a bit of a rim bender! Lots of nice pubs and bars, have fun :)