Seen a lot of comments complaining about elevators, i was able to solve this by having each elevator shaft only 6-7 floors high before i move the elevators making a shorter queue for each one and i stopped seeing so many negative reviews for that. That along with a service elevator and you should be fine
wow....this game was much longer then i thought it was going to be....like 4 hours longer....but i finished it with the best ending so i guess it was worth it :D