Torrents tend to be more reliable quality; around here, they're both equal in legality/illegality, and you don't have to think about your Internet connection.
The actual trick is having done it earlier, not trying on the couch right beforehand.
Torrent is more reliable than paid a services like Prime Video. My wife got pissed watching one of her shows on Prime. It kept on buffering and quality was trash. I torrented the entire season, put up a JellyFin server. She was so happy.