So I went through Cliffs and Shaums...in some areas, shaums went into extreme detail (as in explaining experiments of nonsense) and sometimes I found it to skip important concepts. I haven't taken the DAT yet so I don't know what the right amount of detail is, but I think Shaums is lacking in many areas (can't rememember them). Hope this helps.
I think Campbells is the only book that is comprehensive, everything else is simply not enough.