Ruins of Mars is a multi-POV story hard sci-fi story that reads like an omniscient third-person point-of-view (POV) sci-fi trying to incorporate standard-fare romance amid long descriptions of "fantastic new worlds". Too much of the story is exposition for me after all the Urban Fantasy/action-adventure I have read. People and emotions are described instead of shown. Some minor repeat of situations which could have been avoided by better editing. Sometimes hard to follow as the timeline jumps around to keep the tension up (works for the tension and the timeline clarity can be quickly figured out, but I know some people hate this type of device so I am just mentioning it as a warning).
Overall a possibly great story supported by good writing hidden by mediocre editing. If you like hard sci-fi, you may enjoy this.
My favorite parts are the ones involving the anthropologist. Least favorite is the abrupt ending - the next story immediately starts where this one ends and the third book likewise is not really a "new book" but a direct continuation. Fortunately they are all available at this time if you want to read straight through and treat the story as one mammoth read. (Have not read books 2 & 3 and do not plan to.)