I don't like it. When my DD started school, she palled up with the little girl who started at the same time as her. After a while she used to say, I don't like X, she won't share, she's mean etc. We shared playdates and I got to know X's mum, who was a really lovely woman. She seemed to do this type of parenting though. The little girl was never told off, never made to share, never told to say please or thank you. She was very spoilt, and had every toy that you could imagine. Sadly, she behaved like a brat. She also had a very nasty attitude to everyone, as if she thought she was better. She was very unpopular at school, because, quite frankly, she was horrible to be around. I could tell many stories of her bad behaviour.
She was unhappy in school and her parents moved her to a different school when she was about 8. Apparently she didn't settle and make friends there either.
Very sadly, her parents split up a few years later. I don't know what happened, but she now refuses to speak to her mum, and lives with her dad. I bumped into her mum, who is heartbroken, and doesn't know how to get her DD to talk to her again.
I don't know if it is due to the type of parenting, or perhaps she was just a child with problems, but she was awful as a young girl, and I felt that she needed discipline and boundaries.