I started with the 6 qt. and decided to purchase the 10 qt. Love the mechanics of the cooker but not the inside pot. The non-stick on the 6 qt peeled horrible so I had to order a new pot. Also, the valve on the 6 qt. broke andI needed to replace it. I am now extremely cautious with the 10 qt. I wish the company would offer a stainless steel pot without the non-stick coating. Unfortunately, Customer Service is lacking as you don't actually offer a solution. The company just doesn't send behind their product. I sent pictures of the peeled pot, it is obviously an manufacturing defect in the non-stick coating. The pot should have been replaced free of charge. I' am sorry I purchased the 2nd cooker as the inside pot has the same problem. I purchased the second one around 6 month after the first as I needed the size. I have to say aside from the pot issue the cooker works well. Having a pot roast in an hour is great! Just having to be extremely, extremely careful is not a joy!