I like red dots, and have been using them on multiple guns lately, and liking them more and more..
I would deffinately stay away from the cheap chinese ones you see floating around, invest in a good one..
I have a burris fastfire on a 10/22, and a 60sb. very fun for fast aquisition plinking, I dont expect 1/4 inch groups with it, but great for killing cans.
I have tried large framed red dots on the 22's, but it kinda made them feel a little top heavy for my taste. Going with the pistol size /micro red dots , you practically dont even feel them on the rifle.