Me too. I still use mine. And love it. With a nice little Weaver V22 scope on it, it can be a real asset. The only problem is you have to zero it after a dozen or so long shots. That plastic action is ok for the iron sights but the scope...meh. I still use the V22 though.
The iron sights are (purposely I suppose) not on that removable action cover. The lighter .22 scopes probably do not cause as much torque on that cover as a larger 1 inch ones.
I use to always mount a regular high power scope on all my .22 rimfires. There is another potential problem tho it never seemed to occur on my rifles.
Those regular scopes are typically set to be parallax free at 100 yards. If you do not hold your eye pretty much always in the center of the field of view the cross hairs might seem to move when sighted on nearby objects.