I feel like there should be some comparison how is it better than expireddomains.net, which is a free service

Great idea! It would be easier to access it without an account.

> Great Backlinks

> We know how important a strong link profile is, therefore we find domains that have high quality and trustworthy backlinks.

It seems really scummy to basically steal reputation like this. Your new site doesn't deserve to have a higher Google rank just because it has the same name that some other site used to have.