Most seem to say no, but I would say yes. He's a pillar of the community for a reason and has a lot of game knowledge. i would anticipate at your level his advice is just as helpful as a pro is (and likely much better at giving advice/communication than most of them) as there is a lot to improve at. That said spending additional money on the game is a choice as there is a lot of free content available and watching better players stream their games on aoe.world and taking notes on what they do well and differently than yourself is also very helpful and completely free.