Like the HF S models, the HF20 and HF200 incorporate this year's features, which include Video Snapshots, 4-second clips used to create a "highlights reel" effect (the camcorders ship with a music CD). I like the idea, but the implementation can be annoying. You enter Video Snapshot mode by pressing a hard-to-feel button on the left side of the camcorder in the LCD recess. A blue outline appears on the display. When you press record, a highlight travels around the blue outline counting down your 4 seconds. It stays in Video Snapshot mode until you switch to playback or press the button again. While I like the way the display feedback works, I think I might have preferred a separate record button, or a choice on the mode dial rather than the have the isolated button. (For a complete accounting of the HF20/200's features, you can download the PDF manual.)
Performance and quality are top notch at both its maximum 24Mbps bit rate and at 17Mbps. (Recording capacities are about 5.5 minutes per gigabyte and 7.8 min/GB, respectively. Canon recommends a Class 4 or better SDHC card.) The camcorder focuses quickly and accurately, even in low light. Battery life is pretty good--about 1.5 hours--and Canon sells higher-capacity batteries to double or quadruple that. Unlike the HF S models, these don't offer quick charging. The optical stabilizer, as usual, works well out to the end of the zoom range. I did run into a problem with it failing to recognize my SD card (a normally bulletproof SanDisk Extreme III 30MB/sec edition) after initializing it and using it for a couple clips, but I was unable to reproduce the problem. Having internal memory "just in case" may be worth the price tradeoff for some users.
The video looks great, especially considering the small lens: surprisingly sharp, with saturated colors, and excellent exposures with relatively few blown-out highlights. The DigicDV 3 processing does a solid job maximizing the dynamic range. Living-room light-level recordings look quite good as well. There's a bit of noise and softness, but that's to be expected. The audio records crisp and clear, too, though the microphone placement tends to pick up wind noise. There are some flaws, however. While they lack the fringing I saw on the higher-end models, outdoor shots do show a bit of haze over light, brightly exposed objects, and I think there's a bit more ghosting than usual on fast moving subjects. Still-photos looked good and even a bit better than the HF S models, though they're lower resolution.
The Canon Vixia HF20 and HF200 are excellent camcorders, but do cost a lot more than the competition. Of course, you could also look at it reversed: they're smaller and less expensive than high-end models like the HF S10/S100, while offering a lot of the same features.