I opted out but I wanna make an informed decision.

those who opted in, how did it affect your earning on SS? If you can share bits about your portfolio size, type of images you have (lifestyle, travel, editorial), average earning before signign up for the unlimited plan, your earning now, it'll be helpful.

that's asking for a lot of private inofo -- how about you answer those requests for your portfolio first? esp'ly as you don't even have a link to your portfolio

I would say the best way for you to find out is to give it a go, then make up your conclusions.

You don't have much to lose by giving it a go.