Let me tell you what I'm using this gumroad product.
My name is Mohd Danish and I'm indie maker from India. In my country, there are lots of developers who build awesome things and people use them for free. So, people love to support those developers.
But in India to get the money you have to hustle and you have to get an Import Export certificate from the government.
So, I was looking for a payment gateway that solved this problem. Just integrate and get money directly in your account without any problem.
I found gumroad is the best and easy way to collect people to support the "Buy Me Coffee" way.