I really dug this game. I found the dialogue nicely written and the scenes were well described. The length felt nice, not too short and didn't overstay any particular part, which allowed what it did have to stand out. I also think the use of multiple artists for the scenes helped stop them from feeling too similar or repetitive. If I really had any complaints, I felt like the relationship with Rayne and Tayla was a little underdeveloped after they reunited, and could have spent more time focusing on the two of them (Not sexually, of course/srs.). I also enjoyed the implementation of the rats. 

Overall I do think this is one of the highest quality VNs I've read overall, and would love to see more from Umbrelloid, whatever it happens to be.