Rift is one of my all-time favorite burr designs. It looks so simple, and BurrTools will confidently label it a level 8 and call it a day. It's very approachable, I agree, but what happens in reality feels far from trivial. Pieces dance around one another, sticks fly every which way, and somehow, someway, it all comes together.
Tim hit it out of the park on this one, and I'm thrilled to bring you this print as the first of his designs I plan to offer.
This puzzle was reproduced in navy and gold PLA with permission from the designer. Ships assembled.