A couple of months ago my old windows based pc died and I purchased a Mac.What I did and strongly suggest you do is, I googled for various mac genealogy programs, went to their websites and downloaded their trial/demo versions - I think I tried about 4 or 5 different Mac genealogy software programs.Most have a trial/demo version to try out for free.
Play around with them and see which you like. Which is most user friend for you? Which creates reports you want? Which program can you change it's defaults to suit your needs and likes better.This is something that only you will be able to decide for yourself through actual hands on trying it out. Everyone has their favorite but what one loves you might not like.
When I first tried Reunion 9 I didn't like it. I was so used to Family Tree Maker version 16 and had strong likes and needs for my next genealogy software program. But after playing around with it I quickly found that I could customize it a lot by changing a lot of the defaults, not only for layout of the screen and what it shows on the screens but also I can change the reports and what it is or isn't printed and the layout, etc.
The other mac genealogy programs I dismissed quickly for one reason or another - either too complicated, or too simple, don't offer much, not user friendly or one I just didn't like the layout and couldn't customize it much.
I am very pleased with Reunion because it is easy for me to use, and I love the extra features that FTM didn't have but I know that it can be a complicated program and isn't for everyone.A friend of mine wanted to change to Reunion, I asked why and he said because I have it. I told him that was no reason because he might not like it. I had him try out various demos and in the end he chose something else saying he didn't like Reunion, but I love it. So a genealogy program really should be tried out to know if you would like it or not before buying.