Endel earns raves for boosting focus and sleep, with many daily users citing calmer work, deeper concentration, and faster wind-downs. Reviewers highlight adaptive, high-quality soundscapes, useful modes like Focus, Deeper Focus, Study, Sleep, and thoughtful collaborations (e.g., Richie Hawtin’s Deeper Focus and James Blake’s Clear). Users praise minimal, elegant design and family-friendly benefits, including help for neurodiverse listeners. Critiques are mild: some find modes repetitive, onboarding/confusing prompts annoying, and WearOS occasionally glitchy. Overall sentiment: reliable, personalized sound that’s become an everyday companion for productivity and rest.