Anyone trying rich pins?

Anyone trying rich pins like product pins? My question is how are your impressions and clicks going? Do the product pins need to be designed seo friendly too?

I did try spoofing product rich pin data i.e. it wasn't really a product, but I provided the schema as if it was. I didn't notice any difference, higher or lower, in impressions and clicks to non rich pins. But then, as I was spoofing it in the first place, maybe that didn't help. I haven't tried with legitimate rich pins though.