And probably last question, what are pros and cons of using paper wallet like this instead of Electrum one that other user said?
Paper and desktop wallets are not made for same purpose. Paper wallets are mostly for long term storage, basically you print, send the funds there and forget about them while desktop wallet are mostly for daily uses. As for the security, If your PC is not infected then your wallet is safe, and for the paper, as long ans you are hiding it in a safe place, you are fine.
What do you mean by a "paper" wallet?