So has anyone used this feature before? If I play through this and then buy the game later will saves carry over and the like? Or are the saves for premiere games different?

Was just curious because I won't be able to buy it right away now but a month of origin is ~15 I think so it's a bit cheaper. Was gonna get premiere and play it then buy it down the road. But if saves wont work between the games then I'll just wait it out.