My husband recently brought a puppy (i.e. only about four weeks old) home for our son because he thinks every boy needs a dog. The first night he thought it would be great for the puppy to sleep in my son's room with him so they could get to be friends I guess. We were up most of the night, the dog peed everywhere...even my son decided to kick him out of his room after that. Enter the dog crate. We got the portable one since we like to take vacations and thought it would be a little easier than the metal ones. The first night the puppy whined for awhile and then got used to it. The second night my husband didn't zip the door all the way and he wriggled his way free, so when I went downstairs the next morning he was sitting on the kitchen floor and there were doggie messes all over the kitchen and living room. UGH. Since then he's been getting better and we've been sure to zip the door all the way shut every night. I like that the top zips all the way open so we can get to all areas of the crate. I guess I like the window shades - seems like a handy feature to have but we haven't used it much yet. All in all, a good purchase (much cheaper than the metal crate) but beware to zip the door securely!