We got this range about 3 weeks ago.  So far everything is working as promised.  It really boils water quickly.  
Have not used any of the precision cooking or chef's recipes.   Waiting for the smart pots that are part of the promotion.  Lead time 16 weeks is long so I will update the the review after I get the new pots. 
Burner heating does vary with the type of pans being used.  I the pan is a SS pan it is very quick, however if the pan is a non-stick All-Clad it is much slower to heat.  Still very acceptable and faster heating than the electric range i replaced.
Only complaint is it is hard to keep the cooktop clean without streaks.