Reviewers mostly see Opera as a fast, smooth browser that stands out for built-in tools people use right away: VPN, ad blocking, sidebar messaging integrations, sync, battery saving, and handy touches like tab search, workspaces, and mouse gestures. Several call it a strong alternative to Chrome. The main criticism is narrower but sharp: one long-term user says Opera GX has become cluttered with gimmicky extras, weak UI decisions, bugs, and inconsistent feature quality. Others also note limited customization, missing vertical tabs, and occasional site compatibility issues.