How do you Define a good agressive player from a bad aggressive player?

Can you spot a bad lag easily?
I always think anyone can be aggresive for a session and come out on top given the table dynamics and the variance of that specific session.

it can be very hard to play against a guy who is free betting on every street and
calling you down putting you under pressure. and in my eyes he would most of the time be a skillful player, but overall he would be a losing player.

then you have aggressive guys who are winning players but come across easier to play against in a given session or even over 3 or 4 sessions.

stats dont lie but sometimes A cautious aggressive player is better for me in a cash game than a maniac with a small ROI

a bad agro player will be picking bad spots to be aggressive and also not cairng about position as much. good aggressive players use timing and the right moment to do things. its all about reads aslo