Apart from the occasional bug (which are easily reported and fixed), it's very nice. It doesn't run correctly on Mac (yet), but it's fine on Win and Lin, and allows for some interesting effects (PyGame could probably manage them as well)
My problem is that because it allows for more screen real estate in a given resolution, I've had to redesign my UI, and rebuild a lot of my IO wrappings. It's getting there, but it's a bit of a slog, especially since it's given me ideas that I've been adding at the same time.
