This was purchased a month ago to replace a 17 year old slide in range.  We were tired of burners that had lost their power...Btus were definitely down.  I actually have been able to do stir fry on the new range.  That was impossible on the old.  At Christmas time we used the two ovens many times and baked many cookies and rolls  while baking dinner entrees
at the same time.  After one months use, we are very pleased