Thank you for your post and welcome to the forums.
To transfer images from the camera to a MAC OSX you need to use Wireless Auto Import. Please click on the hyperlink and download the software. Please read the instructions before downloading and during the wireless import.
If you run into a problem contact Sony Support for further assistance.
with wifi, is there any way to get my photos any other place but facebook (it seems like they go as low resolution) or PlayMemories? If not, is there an automated way (REST service) to get them out of PlayMemories?