Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Questionable product

Just received this BoxWave USB Lightning cable. As others have mentioned the Lightning plug is slightly larger than the Apple OEM and requires some effort to insert into the Iphone 5. I am hesitant to use it until I hear more reports, particularly regarding any damage to the iPhone as a result of forcing a plug into the slot. It says GUARANTEED to charge and sync, but no guarantee as to any damage it might do to the iPhone.