Instruct: Classify a given Amazon review as either positive or negative.
Query: Thank you Ryan

I want to thank Ryan for his review. He saved me $35. I have a Scooba that, according to iRobot Tech Support, needs a new Power Supply cord ($43). I considered buying the Scooba Charging Base instead of the Power Supply Cord. Now I see that had I made this purchase, I would still need to purchase the Power Supply Cord. As it is, I may still need to purchase a new battery for the Scooba which is another substantial purchase. So, I greatly appreciate Ryan's head's up.