Product review (5 stars): Great DIY money saver
Considering the cost of a professional appliance repair service call, this is a very reasonably priced part.  A screwdriver is the only tool required to install this.  A bad igniter is the most likely common reason for a your gas oven's failure to light...imagine that.  I even had hints that something was wrong before mine went completely bad, when the temperature was low and inconsistent.  At full failure, the igniter glows, but does not get hot enough for the gas valves to open and heat properly.  10 minutes of labor to install the new part, and the oven is as good as new.