honestly, his fondness for the dumbass long 2s has lessened since he's been in cleveland compared to this season in new york. he still takes too many for sure - 26%+ of a players shots absolutely should not be long 2s - so hopefully he does work on discipline even more.
although to be fair, dion also has a penchant for taking terrible long 2s. more than jr has as a cav thus far, too. so jr isn't exactly even a downgrade in that regard, and he's certainly an upgrade elsewhere. i agree about being pleasantly surprised thus far. he still needs some fine tuning, and i think if and when the offensive system actually gets running he can be utilized really, really well so long as he's willing to go along with it.