I've had both the Ruger, the CZ 527, and a Zastava, all in 7.62x39. Without a doubt the CZ was the nicest gun. The Ruger, while solid, had a crappy trigger and was built on a .308 length receiver using a mag block. The CZ had a scaled down action, detachable mag, and a single set trigger (even "unset" though it was still way better than the ruger). It was also lighter, shorter, and had iron sights.