I have read a lot of SF over several decades -- not much lately because the shelves seem to be filled with books by vampire, "fey" and fantasy writers that basically don't give a crap about science or the future and copy each other to death.
This tetrology actually is based upon an interesting future/science idea -- what is now referred to as the "singularity", that is, when our intelligent machines achieve consciousness and self-direction, what next? The plot had promise, but 4 volumes of this stuff is just too much. Fortunately I bought the Kindle edition, so no innocent trees were murdered in vain. Some electrons may have been damaged, though.
The trouble with this series is that the characters are cardboard, the science is bogus (as in "Cap'n, the dilithium crystals are overheating, she's gonna blow!) and there is a desperate need for an editor to tighten and pare all this stuff down. Additionally, the author evidently decided that this series would be the next "Stranger in a Strange Land" (Heinlein) and threw in a LOT of 'edgy' drugs/sex/violence into the plot to the point where it becomes irritating and eventually depressing. It's really hard to shock anyone these days, so the effort is wasted -- there's just not going to be a literary buzz, it's just tiresome.
There's no legitimate comparison here with Philip K. Dick -- who is revered because he developed many plot lines that were completely original and startling when first published.