I use the extraction blade and feature setting once a day to make a coffee smoothie and it  worked like a dream... for 4 1/2 months! The cycle would stop after running 2-3 seconds. I called customer service they told me you need to replace the blade unit every 6-8 months. Since my unit is still under warranty I only have to pay for shipping. You should get more usage out of it than 4 1/2 months, once a day, that equals 135 uses. Product is not durable or reliable.