Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Think twice... you won't regret it.

This card is not worth the money. It has never worked correctly for me, and it has only functioned at best as a 200 block card. My father and I opened it up to try to see what was wrong with it and my father said it was one of the worst soldering jobs he'd ever seen. Your money is better spent buying an official Sega 4x memory card. Those actually work. Even the InterAct Nexus memory cards, with 1600 blocks of memory (twice as much), work! If you don't want an official first-party product, at least buy the Nexus card and get more bang for your buck (at the same price I might add).