Well I got save working but it still crashes after customizing a few times.
I put the orignal rip I made without the update on my roomates and it work first shot with save. I made another one with update and that worked for me.
We have been playing so I can confirm wifi works. I also downloaded a wallpaper, so downloads work as well. We both have had crashes I'm finding that having auto save on is better and more stable at least for us. I'm using a CSO and I've had fewer problems than reg ISO. I find that very odd, but thought I'd let other know how I got around it.