Reviewers largely see Duolingo as an easy, game-like way to build a daily language habit, especially for beginners. They praise the short lessons, intuitive interface, streaks, leaderboards, and broad course selection for making practice feel manageable and motivating, with many reporting gains in vocabulary, reading, listening, and basic writing. The main caveat is depth: several users say lessons can become repetitive, too basic for intermediate learners, and light on grammar or real-world speaking. A few also mention annoying notifications, occasional instability, and one language-setting limitation.
