Instruct: Classify Amazon reviews into positive or negative sentiment
Query: He is a good writer but...

Ross Leckie writes exciting, thrilling storys, but a writer should not work in historical fiction if he doesn't know anything about the period is writing. Every time ross goes for some detail...it's COMPLETELY WRONG...he dont even know that a primus pilus (primipilus) is the first centurion of the first cohort. If you want to read historical novels about rome, try Steven Saylor or the marvelous Colleen McCullough. Mr. Ross, You don't have to be a scholar to write historical fiction, but please...read one or two books before you write your novels.