Not really impressed with Iridium plugs

I've changed two sets of iridiums in GM cars

1 set was in my Mother's 09 Malibu 2.4L @ 94k miles and they looked brand new and had nearly zero wear. Gap may have opened by .001 or .002. Dont know who made the OEs as they were branded as AC Delco

1 set was in my 2012 Cruze 1.4L Turbo @ 68k due to a bad coil, there was also no noticeable wear but one plug was green on the top and replaced all 4 for insurance. These were NGK and went with the same OE ones.

I would swap in some Denso or NGK iridiums and be on your way.