I've had an iGo charger for some time but haven't used it since they stopped selling the tips at the Sprint store; had absolutely no issues in the past w/ previous tips. Tried one of the $2 chargers and it stopped working in about a month so I got this tip compatible w/ my Blackberry Curve. Works great. Ended up getting another tip and charger for my wife since we have the same phone and her $2 charger stopped working too!