Now that's an interesting approach, if it works.
Choices are good.
I think it is ok but one month seems like a long time.
Maybe in that one month you saw everything after that why buying the game?
it's stupid, if you like the game, then you buy it, if you don't like it, you buy it and then you ask for a refund (they gotta if you played it for less than 2 hours and before the 14th day of the purchase)
subscribing is just a waste