However, i keep seeing people recommending it, and it's sometimes referred as one of the best.
Blockchain.info is far from being the best. The only people recommending it are the spammers who don't have anything constructive to post other than "blockchain is best" with a broken english in "which wallet should i use" posts.
I really don't know what to think about them. Btw i wonder if some reviews are legit or fake. Should i keep using Blockchain? Or move to something else?
Don't. You must have full access over your coins if you want to keep them safe. Use Electrum for Bitcoin and MyEtherWallet for Ethereum.