Reading Link : Walter S. Mossberg's Mac OS X Snow Leopard Review

One delightful change: Snow Leopard takes up less than half the room on a hard disk that Leopard did, and Apple says the average user who upgrades will free up about 7 gigabytes of space. On my 2008-vintage MacBook Pro, I gained back a whopping 14 gigabytes.

But I also encountered a number of bugs and glitches, and a few incompatibilities, including a wildly wrong guess by Snow Leopard about which driver to use for an older, lightly used printer on one of my upgraded Macs. (It did fine with my main printer.)

Overall, I believe Snow Leopard will help keep the Mac an appealing choice for computer buyers, and I can recommend it to existing Mac owners seeking more speed and disk space, or wanting to more easily use Exchange. But I don’t consider Snow Leopard a must-have upgrade for average consumers. It’s more of a nice-to-have upgrade. If you’re happy with Leopard, there’s no reason to rush out and get Snow Leopard.