So far, on a personal level, the only commercial cams I've been fairly happy with have been the Leaf Rivers.
Granted, I haven't tried them all. Just tried enough to quickly determine most were junk compared to my homebrews.
Last year's biggest disappointment for me was the Bushnell Trophy cam. I put off trying one until October 2010, knew many people had major problems with them, but just because of the Bushnell name, guess I "wanted" to believe they would have gotten all the bugs worked out. I mean, how long had they been on the market by October 2010?
Biggest among the problems I've had with my Bushnell include:
1. Runaway triggering (can fill up a 4GB card in a couple days). Doesn't happen all the time, just that you may put it out, come back in a month, and find out it filled the card during a 48-hour period a week after you put it out. Seems to be no rhyme or reason as to what makes it periodically do this.
2. Extremely poor nighttime images --- blurry and very short red-glow flash range.
3. Extremely poor color on daytime images --- the color is just way off ---- mostly what should be a brown or green color is mostly of a "purple" hue. I will say the clarity of the daytime images isn't bad, if you can get past the purple deer.
4. The case is not waterproof. So far, it's still working, despite having water standing inside twice.
5. And this "issue" may be just a very personal one, but I don't like the way the Bushnell Trophy Cam "points down". Instead of pointing straight out from the tree you attach it, it points down at a considerable angle. For those accustomed to mounting their cams relatively high on a tree, maybe this is a good feature.
But far as I'm concerned, Bushnell has ruined their good name with those POS "trophy" cams.