I have a box that is half inside, half outside and I LOVE it. It is super easy to check several times a day, my son can check it on the way home from school and not have to worry about the chickens trying to get out. It doesn't cut down at all on my "checking up on the hens" routine--I still give them treats 2-3 times a day, hang with them an hour a day, and tuck them in at night. I just made a hole in the side of the coop, made a box to slip in, and then screwed it down and to the sides. An overhang on the roof keeps me dry. If you have children, or others tending to your chickens, I highly recommend an outside access to the nestbox. I've had no nestbox, or inside access only, and those were all kind of a pain to check.