Product review (2 stars): Burner valves may be prone to leakage within a few years, creating objectionable odors.
I have this product in my home and love the high-BTU burners.  My major concern is that 2 of the burner valves do not appear to shut off fully, so that, while there is not enough flow to sustain a lit burner, if I remove the heavy burner assemblies there is enough leak-by to that I can manually light a tiny sustained flame from the gas nozzles.  (See attached images.)  This leakage creates a faint but constant odor of gas around the stove.  It is especially noticeable when first entering the house after being away for a while...which is not what I want to smell every time I return home.  I would rate this stove at least 4 stars if not for the apparent gas leak problem.