The Echo series has been a pretty strong core for Oculus. I've yet to play their story entries, but have heard great things about it. This and echo arena though are very fun titles that act as a pack in free experience that both are great games, fairly easy to learn and have enough stuff to get you into VR. Oculus has made several choices and put several of these types of things out, but have settled into the Echo groove as being their mascot to an extent.

It's extremely satisfying to fly around and deck folks to play zero G disk basketball. And it has some little social hangout rooms which is a very important thing for VR games on average.

It looks kind of drab which is unfortunate, but it is def fun and depending on your level of VR experience, it may not bother you too much that it doesn't have the best art style.