Yes it is. Everything works very fast and well.
Just download the rom, put it on the SDCard, enter in TWRP Recovery, do a Wipe Dalvik, Cache and data and install it. To enable notifications you have to enter in neosafe app and give permissions and everything should be fine. The thing that I love with this rom is that you have the center notifications and shortcuts exactly like iOS. You also have the "search" option like iOS too. Very impressed and remember that is an alpha version.
Any question just ask! Cheers mate!