Overall customers are highly satisfied with the product's cleaning effectiveness, often describing results as 'dentist‑clean.' They praise the powerful yet gentle cleaning action, reliable pressure-sensing technology, long battery life, quiet operation, and ergonomic design. However, several recurring negatives include premature power failures, mould growth near the head/handle junction, inconsistent battery performance across units, and complaints about a bulky brush head. Additional issues relate to replacement head cost, charger plug compatibility, delivery/fulfilment problems, and variable customer service quality.