I am not saying they are superior, because I don't know. I am asking everybody (I am the OP) so I can make up my mind.
I work in IT and every time we want to change a way to do things, there is a lot of resistance; users tell me they have always done it that way, and it is better.
Could it be one of those cases?
This is just my hobby, woodworking that is. So I don't have the knowledge nor the experience, but it sounds something similar to what I described above.
This is my objective opinion, without knowing how good those ez-level things are.
- Wood shims settling, it depends on the type of wood and how many you use and how you install. (This can go either way).
- Faster with shims. Well, if you don't make the toe kick at all, then that time can be used for installing the legs. (so I think that is relative).
- Legs will break. I don't think this one is true, I think that, because the European industry uses this and I don't think they will base the whole industry on something that doesn't work.
Please take my findings with a grain of salt, I am not a pro.
Could be this one of those cases of resistance to change? or do they just not work flat out?