I've smoked two phenos of Moonbow -- 63 and 75. Both were excellent. It'll fill the room with its sweet, slightly skunky aroma, and the taste is similar: sweet and earthy with a bit of pine and citrus.
It's also strong. I'm a regular smoker with a pretty high tolerance, and a half-gram joint of Moonbow is plenty. The high comes on quickly, with a spacey contemplative head high and a strong, all-over body high. Relaxing and invigorating at the same time, it's a perfect evening smoke.