Summary: RAW, tripod stabilized image inside a dim church looked equally sharp as the kit lens. The kit lens image seemed just a bit dimmer though. It might be faster in lowlight than the kit lens but it has terrible focusing in low light and a large amount of the shots came out, out-of-focus. Best used outdoors and I would say the kit lens was generally a better lens because of the image stabilization and better focusing cancelling out the advantages of the 22mm.
Excerpt: Bought this lens based on many favorable reviews and find it useful, but with a few notes worth mentioning: Thought I would use for Video - however the focus motor is a bit louder than the 18 - 55mm Lens. Focus is also a bit slower with the 22mm than the Kit Zoom. For shallow depth of field the f: 2.0 is great - however in terms of low light the Image Stabilization on the Kit Zoom pretty much balances the two.
Summary: Good compact lens to keep on the camera for everyday use. A fast lens (f2) but the auto focus especially in low light is unusable. Overall I am happy with the lens but I use manual focus ring.