Opinion of Micro Mart Rivet Decal Film

Ray, are you referring to the MicroMark rivet decals?  There have been several threads on rivet decals over the past 5 years. Use the forum search tool.  Here are some of them...
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I have not tried the MicroMark or Archer rivet decals yet but I would lean toward the Archer, I know several guys that like them...

I've had Archer rivet decals applied to a heavyweight Pullman car roof and can report they look great.  They have a huge list of sizes and rivet patterns.  

The archer decals work well applied to bare styrene or over primer.  After painting, you can't see the film edges at all.  Apply them like any other decal and use setting solution.  Slide them directly from the paper to the model to keep them from sticking to themselves.  When dry, prick any air bubbles and apply more setting solution.   

This steeplecab has some 3D printed rivets, but I applied Archer rivets over primer around the cab windows, and to bare styrene over the white tank on the deck.

The rivets around the cab windows are finer than the 3D printed ones and more to scale:

Bob Glorioso

I used Archer on the passenger pilot. They worked well and the film is super thin. 

Thanks,

-Mario

I too can highly recommend the Archer rivet decals.

These are micromart.