He hated it, and cried like I was hurting him. I had better luck when I'd put him on the bed, with his head still on the bed but at the edge, and I'd sit in front of him. He liked being able to see me. Eventually I was able to put him on the floor without him freaking out.

My daughter still hates it! She gets mad and fusses the whole time. She'll move backwards but I want her to learn to crawl but she won't if she hates tummy time so much. Lol