Viewers are overwhelmingly enthusiastic about 'Orphan Black', praising its thrilling plot and the exceptional performance of Tatiana Maslany, who plays multiple roles with remarkable skill. The series is celebrated for its gripping suspense and deep character development, making it a favorite for many. While the series maintains a high level of intrigue, some viewers noted that it could feel slightly drawn out over its five seasons.

👍 Tatiana Maslany's performance is a standout.

👎 May feel prolonged in later seasons.