I have now been a few days, both on my MacBook (2008) and my Mac Mini (2007) of Leopard upgraded to Snow Leopard. The first thing you notice: Wow, the start-up goes but fast! And that's not the only thing that has been accelerated. Even with my now 2 1/2 years old MacMini, the now experienced with SnowLeo its third OS, a significant increase in performance is noticeable. Whether it comes to starting up, shutting down, or opening and use of programs (and not just Apple own).
The installation took a little longer than an hour, and I have to say that I have performed a clean install (ie a Komplettneuinstallation) and no update (like Apple indeed intended), which required a previous formatting the hard drive. In other words, data backup on external hard disk, from the disk start (alt-key at startup will do), brushing with the Disk Utility disk, Set Up, Go.
After the post-installation of the iLife suite of the enclosed at my Macs installation DVDs came the very thing I am most afraid: my network printer (Brother HL-2140) installed. I read already some horror stories in various Internet forums. But Oh miracle: There were no problems. Simply re-install drivers manually, address printer with an IP address and it ran. I was excited!
The only downer: My Pixma MP110 multifunction device indeed can also print (the driver is easily accessible via the software update loaded), but no scanner driver is still provided. But that can not be.
At the rate especially the initially already mentioned Apple's own Internet browser Safari 4. He was already under Leopard much faster than for example Firefox, so he plays under SnowLeo thanks 64bit its strengths (especially with regard to JavaScript) fully out and rest just as then. Mir is to date still come no faster browser (except Google Chrome, but I for reasons of privacy of Technology do not recommend).
Even third party programs will benefit from the new 64bit architecture. Whether Firefox, Adium, VLC, Google Earth - all start faster and run much smoother than before on Leopard. Since I am not a professional user, but "only" a student, I can not have professional tools like Photoshop etc.
Nor was the end of the completely redesigned QuickTime Player X mention the now borderless comes along and the movie experience so not even diminish by a window frame, this fades out automatically when the mouse leaves the window. After a slight modification with Perian it supports all popular codecs (or even more than he brings eh innately already). All previously tested videos ran smoothly and perfectly clear.
Conclusion: Apple has done with its new operating system a total tune "under the hood" that only when working appears, but all the more pleased. His 29 - the update is definitely worth - I do not want to miss!