It's not the same version. We have access to MOST of the features but not all. After a while, you will find that the engine actually lacks in power. I know it looks crazy awesome, but the veil will drop.
That being said, it is still a GREAT engine to play with. It isn't no where near Unreal 4's quality as far as detail goes (I'm not sure which one crashes more/less either) but it has had plenty of improvements over the months that have made it pretty stable.
Have fun! But, don't get too vested. Don't turn it into a job.