Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great value!

This dock works great! The batteries and the cover itself will fit your Wii controller perfectly. I would love that this dock had 4 charging stations instead of just 2, because battery life is not quite the best...but even with this minor "defect", you can enjoy at least a minimum of 6 hour continuous game play with no issue at all (I once lasted 8 hours playing Guitar Hero World Tour with my friends using 2 guitars, the mic and the drum set).