I tried this for a while but returned to a mostly authoritative parenting-style with CL leanings. I was trying to incorporate the ideas into a very competitive, rivalry-filled house of 3 school-age/teenage boys with the teen having behavioral special needs, and total CL wasn't working. I am still very interested because I think it CL is a good idea in theory and I think the values of it are so much more conducive to family harmony than many other styles of communication, discipline, etc.
It seems though that CL theory has a tendency to be misinterpreted and mispracticed in real life in ways that make it stressful on everyone or at least on mom and dad. It is easy to make the pendulum swing from one extreme to the other, going from where Mom and Dad are "in charge" to a point where adult needs no longer considered as an equal part of the equation. For example, if mom is tired and needs to sleep and DC won't go to bed so mom just stays up, that's not CL as I understand it. A child pooping and peeing on the floor where others have to walk is not CL. It is equally important IMO to meet childrens needs and also teach them to help meet the needs of others which required giving up some of our own needs. Leave out the second part and that's not CL.
The other struggle I see is a lack of understanding of early child development. I don't mean that in an offensive way, so please no one take it that way, its just my educational background and I see it conflicting at times with the way CL is implemented with young children. Children are not born fully quipped to converse their needs nor understand cognitively everything that you are saying to them. Its a developmental process that takes the first several years. Its part of their growth. I have a hard time with parents asking questions of 2 or 3 year olds that are better suited for a 8 to 10 year old to answer. Many problem-solving questions are in this category. Children need an observational period to learn how to problem solve, observing good adult role-models before they can be questioned about solutions. They must see effective solutions in practice before they can be expected to understand and contribute to problem-solving. Language development and cognitive development are separate areas of development so even children who exhibit high verbal skills may not understand the abstractions and representational thinking of an adults, and vice versa, a child may be advanced cognitively but unable to articulate it. Young children can express needs and in CL their needs would be considered equally valid, but I think it is more developmentally appropriate for the parent to meet the need calmly and without too many questions or abstract thoughts until after age 7 to 8.
One last concern is the need in early childhood for security. There is a security in knowing that your needs will be met by someone bigger and stronger than you. A parent always going to the child to make decisions could potentially cause a child to feel vulnerable and insecure, when the design of the approach is to create the opposite effect. I am sure this varies widely with each child's temperament as to whether this occurs. I can see within my own family a child who would have thrived with CL from birth, whose strong temperament often clashed with his fathers (XH) rigid rules, and another child who seems to really need and value parental guidance and authority in a way the other resents.
So one might need to approach CL differently with toddlers than teenagers. In our house we'll have both shortly so i am trying to figure out what approach will work best for us as a whole and not make me crazy in the process. Maybe I don't know enough about it to implement it effectively myself. For example, my son, 13, agreed to go to the zoo this morning during family breakfast. Now he says he won't go, that zoos are stupid. He cannot be left alone in our house because he steals money (he has behavioral issues that are supposed to be helped by CL but I find it very hard to practice it with him).
Ok...had to leave this post sitting here while DS had major behavioral blowup and I spent too much time on it (the post, not the blow-up ) to let it go...so I'll just end here and hope its coherent and of value to someone!