I've been very happy with Aperture since it was launched and it's been consistently getting better. I rarely ever need Photoshop now. Where I think it needs improvement is in dealing with large libraries. My library just passed 40,000 photos (240GB) and things were getting slow on my 2009 17 MacBook Pro (Intel Core 2 Duo 2.66 GHz, 4GB DD3, NVIDIA GeForce 9400M 256MB) so I upgraded to Aperture 3. Needless to say, it was in fact a downgrade. Aperture is barely useable. How many photos are in your library? How's your performance? Anybody have a large library like mine but finds Aperture 3 to work well? What machine are you on?