Excavator problems

[Cornbread]

Im new on here lurking around reading about Excavators. I was that is was, gonna buy one. But I see ton's and ton's of problems. It seems that the problems are in the valve block, of these excavators with pressure not being directed to where it needs to go inside the little Valve blocks. And being servo run wow that is a whole can of Noodles. What I see should be done is, someone needs to do is Machine a clear acrylic valve block to see what the **** is going on inside of it, Just my two cents..
Corny...