I was always one of those people who thought that crate training was just mean and I couldn't imagine forcing my dog to stay in the crate. So, until very recently, my 2 yr old maltese NEVER spent any time in a crate. After his knees surgery, we were forced to confine him, so we used both a playpen and a soft-sided crate to vary his locations and to mix things up for him. The most amazing thing is that he absolutely loves his crate now. He even prefers it to the playpen!!! Voluntarily, on his own, Miko will walk into the crate and spend hours sleeping in it (even with it open). Anyone else has babies that LOVE their crates? I am just amazed at this!!!!!