This purchase was part of my kitchen renovation and I went with the 800 series.  I love how sleek the oven looks and love the 5 burners too!  I found that I had limited use for the oval burner that is offered by other manufacturers. The only reason for 4 stars is that the large height from the burner to the bottom of pan results in a slightly longer initial heat time. Not a big deal, but adds a few minutes to the cook time!  But overall I love it.  The oven has even heating and the cookies came out perfect every time!