I'd say no stars for this one. The motor kept working but the blades slowed to an ineffective crawl and chopped nothing. Wayfair sent me a replacement, which would have been great, but as soon as I removed the new item from it's box, I could hear a screw (or something) loose inside the base housing.  It sounds like a rattle when I shake it.  Customer service told me to upload a photo for resolution, but I've heard nothing from them after 2 days.  I thought I should get a replacement but after some thought, I realized I should just give up on this product and get a refund.