Personally, I struggle to see what is new that Ethereum Classic offers?
What sets it apart from the other more technologically advanced coins out there that are being worked on from ground up; such as Cardano, EOS, etc. and those already with actual real-world adoption such as Stellar Lumens, or Litecoin?
Will Ethereum Classic be as scalable? Or will it have the same issues as Ethereum once the network becomes just as busy?
Ethereum classic offers nothing, there is no advantage to hold that forks coin dude. But as far as i know that the ethereum classic will try to get scalability solution through Callisto side chain. That's why there will be a Callisto hard fork in the future. But you can try to read more about that through this link
https://themerkle.com/ethereum-classic-devs-aim-to-address-scaling-with-callisto-sidechain/