If going in Yacht Club, you’ll be fine…regular cabins, not so much..fact is, I wouldn’t sail on MSC in a non YC room..I’ve done it, once..3 times in YC so far since.
Elite on Celebrity if that helps..I much more enjoy the entire Celebrity ship overall vibe over MSC. Regular Verandas suit me fine on Celebrity..Aqua for a splurge…the Retreat for a special time on E Class.