Works fine but people did report some issues with ssl.
Some people have had a hard time getting NEM going on a Mac, but I can confirm it is possible and this is how I did it.
It is actually pretty easy once you know how to do it, but like anything if you don't know, it is really hard. hahaha
Step 1: You will need the developers kit of Java. Go here and download the version for Mac.
http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html(this may or may not be necessary, if you can get NEM to work with the regular java 8, please let me know in a comment)
Step 2: Download the stand alone version of NEM from here
http://bob.nem.ninja (get the latest version)
Step 3: unpack the file to the desktop and if done correctly, you should see a folder called package on the desktop
Step 4: open terminal and type: cd Desktop/
Step 5: next in terminal type: cd package
Step 6: next in terminal type: chmod +x nix.runNis.sh && chmod +x nix.runNcc.sh
Step 7: next in terminal type: ./nix.runNis.sh
If things go correctly, you will see terminal start to get really active.
Step 8: Open up a different and new terminal window and type: cd Desktop/
(To open up a new terminal window two finger click on terminal and choose "new window". Do not close the old window.)
Step 9: next in terminal type: cd package
Step 10: next in terminal type: ./nix.runNcc.sh
If it works, terminal will be very active
Step 11: go to
http://localhost:8989/ncc/web/index.html in Safari.
You should see the NEM screen. You can now create a wallet. You will have to download the whole blockchain which takes a while. Post your address and somebody will send you coins.