Instruct: Classify a given review into positive or negative sentiment.
Query: Works well for me

I bought this map for my eTrec Legend HCx so that I could plan cross country auto trips. I have only used it for one short trip but it performed well. Routing could be a bit more straight forward.I must agree that the unlocking and installation is very aggravating who are they trying to protect it from, the CIA cipher division?I will update this review after a 2500 mile trip this spring.