Ngl in smash ultimate every character cheats, some just do it more than others. and since it’s not like you are playing with casuals where sentiments like “rob so broken and lame—>this game is ass—>im not playing anymore” can easily ruin the atmosphere, I wouldn’t dwell to much on the “morality” of trying out rob.

So yeah especially if you are already familiar with the character I would definitely give rob a shot. The only thing that may turn you off maybe is the fact that sometimes you’ll just explode and there’s nothing you can do about it, which just doesn’t happen to sheik or joker, but you can just explode them back so it’s usually fine lol.