Wow. Really surprised by the first couple of posts of this thread. Just purchased a CZ 452. Not having any firsthand experience with this rifle and not knowing anyone who owns one, I decided to become an expert the easy way - I did some research on the internet.
Basically, I couldn't find anyone who actually owned one of these rifles who had anything bad to say about it. Found an awful lot of people who thought it was the best .22 you could buy for under $500, and who were particularly enthusiastic about its accuracy. It was something of relief to read some of the later posts by owners who seem pretty happy with there CZ's.
My rifle should arrive next week and I'll be curious to see how well it soes. I'm counting on it to be a tack driver because it's getting to the point where I can't afford to shoot my AR's and .308's.