I do sometimes wonder if authors ever look at their finished work on the medium for which it is intended. Viewing this on a Kindle there is a one inch margin on the left hand side of the page and all lines are double spaced which does not make reading it easy. Fortunately it is a short book or I would have given up on it. The writing style does not help the reading flow having as it does very long sentences. There are a number of errors, some amusing, which leap from the page such as using the word "brazier" instead of "brassiere". The actual story has potential but it reads initially as though it is going to be part of a series with quite a lot of background given about the "Helios project" and the characters. However as the story progresses it almost seems as though the author just wants to be finished and the rest is very rushed. A book with potential that is not fulfilled.
This story has an interesting plot, however the delivery needs quite a bit of work. A LOT of time is spent setting up characters with lots of detail at the beginning, but when the plot starts to get interesting the author starts to speed up and gloss over far too much in a mad rush to get to the end.
The writing itself needs tightening up - the sentences are long and rambling, inadequately punctuated and full of errors. The best was the fact that the heroine is described as not wearing a "brazier" - at least I could smile at that error. The rest just annoyed me more and more as the story went on. Perhaps the author dictated their text, and didn't check it before sticking it on Amazon? I don't know.
It's a shame that the writing is so poor compared to the potential of the story. I hope the author takes the opportunity to re-work this manuscript, as I'm sure it could be turned around into a much more enjoyable read.