Get both, you can't have too many motorcycle books. Neither is perfect by itself and have errors. However, armed with a Haynes, a Clymer, AND the unredoubtable Hopefully New and Improved but Still Unofficial and Purposely Disorganized R65 Forum, you can fix anything you need to fix on the R65!
Oh, and one other thing. Even if you move on to another bike(s), don't ever sell the manual(s). You'll eventually find your way back here.