Reviews praise its fast, simple sign-ins and easy integration, often done in minutes, with many noting smoother CX and higher login conversions. Users like avoiding SMS OTP delays and costs, and appreciate reliable WhatsApp, Google, and Apple flows. Several highlight strong security if implemented correctly, though one warns about privacy concerns and unsolicited contacts. Others request a generous free tier and session portability across sites. Overall sentiment is very positive: hassle-free onboarding, safer feel, and practical benefits for international numbers and lead capture.