Product review (2 stars): Look Beyond the Looks
I initially ordered a Profile 30" via Amazon but switched the model prior to shipping (so my I have a Cafe 30 but my review appears under "Profile 30.")
1) The shock and awe is past.
2) I agree that there is a design issue with the grate height so heating is very inefficient.  (Have not had a problem with knobs breaking, though.)
3) But the worst thing is that I now have control knobs locking up on me.  One that I can't turn on and, dangerously, another that I now can't turn off!  (My girlfriend freaked out while cooking yesterday.)  So I had to turn off the gas to the cooktop.  I'm currently pursuing a solution.  I suspect that the valves need to be replaced.
I was willing to overlook some shortcomings, but I really can't recommend this product.