Jazzy doesn't mind her crate at all. When she was a puppy, it took a few nights of whining, but then she settled down and never complains about being crated ever.
During the day Keoki gets treats in his crate, and will sleep in there as long as the door stays open. Once the door closes, he goes in to panic – or tantrum -- mode.
Last night I put him in while he was sleeping. He woke up a bit, but I petted him and he curled back up and went to sleep. I left the door open, and moved to the living room where I could see him. After a few minutes he got up, took a few steps out, and I said--very gently, "You get back in bed". Darned if he didn't turn around and go back in, curl up and go back to sleep. That happened twice. Then at 12:30 my daughter came home from a babysitting job, waking him up again. I took him out to potty, then brought him in and put him right in the crate. I petted him a bit and he settled right down. I closed the door, but stayed there until he closed his eyes. Then I got up and turned off lights, etc. He started whimpering, so I sat back by the crate door in the dark and talked to him until he settled down again. I waited a few minutes, then quietly went to bed {it was 1 AM}. It was probably 10 minutes before he started crying and bumping around, but either it only lasted for a few minutes, or I have learned to sleep through it.
He was quiet until just about 5:30 this morning, so I got up then and took him potty and started our day.
I am home all day, with five of my kids and two that I babysit. We have a fenced 1/2 acre yard, so he gets plenty of attention and has a safe place to play. We don't leave him outside w/out people yet, though, as he does need supervision out there -- yesterday he found a small gap in the fence and got out. That has been repaired, and we don't think there are any more gaps.
He stays outside w/the other dogs and kids for hours at a time, though. He and Jazzy play like crazy dogs in the house, too. Honestly, you'd think he'd be so tired at the end of the day that he'd welcome some quiet crate time at night, LOL.