I've had mine for about two months now.
Pros - Aesthetics, massive battery life, profile and connectivity (the HDMI out port is great).
Cons - The processor can get bogged down easily, I felt it quite painfully as this Netbook replaced my old Gaming laptop that had a twin core processor in it. It feels slow, but I guess it's part and parcel of how you use these things. If you avoid heavy multitasking it copes fine.

Shame about Meego though. What other Lightweight OSs would you guys recommend for the Booklet 3g? Windows 7 is a bit of a hog.