What I really like is being able to add stellar objects to determine the best time to observe them. I feel this software does what it claims, I rated it as 10 and urge those needing to organize their their observing to download it and try using it. I have it on WINDOWS XP using a Celeron processor and it works fine too.
Does what it claims. Simply shows what is visible and importantly whether the moon is visible. Only slight criticism is you have to go to a second display to see the lunar phase.