Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Zumo review

This Zumo 550 was a gift I purchased for my husband. He is thrilled with the Zumo. From the minute he turned the Zumo on, it has worked beautifully. This little gadget does so much....we're still amazed with the flexibility of this unit. It works great on his bike (Harley Ultra) and easily goes from bike to vehicle in only a few seconds. Haven't purchased the XM antenna yet, but have been very pleased with the Zumo 550.