I've read, and mostly enjoyed the experience, KSRs Mars Trilogy. The all-encompassing scope definitely gets tiring, but I found most of it interesting enough that I'd look forward to the evenings going to bed and reading to find out the next stage of the evolution of the society or terraforming progress or political (in)stability.

I'm glad I've read it, but I doubt I'll return to it.

I'll definitely be looking for this as a book gift to myself.