Product review (5 stars): It took time to find the right part, this worked for me
If your doing this repair, your most likely competent and handy, but here are some basics any ways.
Turn off the gas supply line before work.
Turn off breaker that supplies power to broiler and unplug unit
Double check all safety procedures.
Remove from box and install with care. The first one I received was cracked in pieces in the sealed packing box.
Insure you have serviceable ceramic high heat wire nuts for install, inspect the old ones closely, half the time the old wire fractures off in the threaded part and renders them unusable.
Inspect the high temp wires for cracks, cuts and unserviceable abrasions, replace and terminate with high heat connectors (all available on Amazon)
Take a quick picture before and during your post job inspections. When in doubt, a pic at each step.

The igniter works well and performs like it should.
The igniter does not come with the cage / holding bracket like some other ones I have used in the past.
The igniter comes in a padded box with no hardware.

I used this model on a Jenn air oven / broiler.  Maytag / Jenn air / whirlpool all suck, its cheap inferior barely serviceable garbage that was made for the masses, but nothing is as bad as a GE ( yes Monogram sucks too, it will never compete with Sub zero, Viking,  Bosch, or Themador).  There are a whole lot of names and brands that are under the whirlpool umbrella and many parts will fit many brands.  Do your research, the answer is some where on the web. Cross reference charts are generally not given by  the manufactures, but are made and posted by appliance part suppliers and technical service experts.  Once you have a serviceable part or generic part number then shop price.  example:  I was  quoted $162 for this part branded as a Jenn air replacement, because Jenn air no longer makes or supplies this part.

replacement part life span and duration is the most subjective because of use, so I can not testify about this, but its cheap enough to replace and cheap enough to keep a spare on hand.