For me, there is one big question mark over Roots' ability with the bat. And that is, he has failed in Australia.
Root is regarded by many (Poms) as a modern day "great". But if he is a "great", I want him to prove that to me in Australia. After all, we are the greatest test playing nation. For me, scoring mountains of runs on the dead earth of Pakistan is not enough. He needs to prove it against the premier test playing nation in the world on their home soil.
Sadly for Root, he has toured here 3 times and never scored a test century and his average after 14 tests in Oz is 35.7, which is poor for a "great" player. Moreover, England were flogged unmercifully in those three tours. He had no influence on the outcome of each series.
I assume he will tour here in 25/26 which will be his last chance to stake a claim to greatness. Until then the jury is out.