ninepointer, I picked one up at Canadian Tire for 49.99. Seemed a good buy. You can tell its a bit cheaper, but seemedto work fine. Tighten it properly, and it calibrates well. The covers are cheap and you can lose them, so care is good. Thinking of attaching a little black wire to hold these together and to the scope.
As for the fogging, I had it out in -5 or so, and it fogged up a little bit, but just externally. Migth have been my breath? A little wipe and I was good to go. For a .22, this is an adequate and inexpensive red dot solution. Fun to use, can keep both eyes open and the target aquisition is instant. Also, red-dots are safer in the way that you can keep constant observation on your firing vector instead of getting optical tunnel vision.
I want a magnified scope eventually for my tactical 10/22, but for now this does it.