The chart calculations are inaccurate and unreliable. The first chart I created produced a chart with an ASC 13 degrees off when find time zone was selected, and 3 degrees off when local mean time was selected. I tried every conceivable tweak to get the correct chart. I had to enter an incorrect birth time--off by one hour--to produce a chart with the same ASC that every other astrology program Ive ever used has produced with the same raw data. Very disappointing.