My one problem with it is that the game part is so poorly developed, why even bother making the mc know the future if he never actually used it for any benefits (except one time).
Don’t read mtl of this or you will be very confused. Have a good start and middle, but if you don’t know or like fgo then later at the Lostbelt arc the story would just feel like it drags on for too long. Great ending though.