I played it through level 20 about 3-4 years ago. It worked well using the 2014 rules and subclasses. The 2014 version of Grasping Arrow is pretty awesome. After level 10 I think I took 4 Wizard levels, taking Bladesinger subclass.
I did not have the new version of Truestrike, that would be a big buff at low level, but once extra attack comes online I think that would be better.