I read in a review check-in is at 4PM. Is an early check-in possible? Nothing written about check-in and check-out details on their website.

Early check-in as long as the room is ready. And really good about s late check-out. Excellent hotel and staff.

Yes it is possible for early check-in however it depends on how booked they are

Yes there's an earlier check in time

Yes there is an earlier check-in and check-out