This is about Leopard, but bear with me ...
As a long term Windoze user (I started in the days of Windows for workgroups 3.11) and upgraded through every flavour to XP and have installed Vista for friends (I also ran my own Linux based web hosting business for 7 years) I must confess I was a long time Mac Basher!
Back in 1999 I bought myself one of those (at the time!) pretty looking strawberry flavour iMac's thinking it was going to be the best thing since bread got sliced, only to sell the thing at a loss 3 weeks later after no end of crashes and hanging problems.
About 18 months ago I decided to buy myself a Dual 1.8 Ghz G5 PowerMac, and joy of joy I found myself using tiger for the first time and after 5 solid hours was a convert, I read somewhere that once you go Mac you never go back, and I'm ashamed of myself for being a reformed Mac basher, but at least I saw the light.
I'm no expert (an ex is a has been and a spurt is a drip under pressure!) but I know a little about computers and feel well positioned to comment nowadays without any bias, and hand on heart any PC users out there who are still to this day Mac Bashing, please take the time to go and use one of these babies, because the joy of using my little G4 12" Powerbook, or my swanky brand spanking new replacement for my Dual G5, a Dual core 24" iMac in silver and black, quiet, sleek, sexy and should the awful need arise the capability to run Windoze XP (and surprisingly in 18 months I've never found anything I needed to go back to XP to do even though I was die hard PC!).
Okay, like a good Billy Connolly joke, I now get back to the subject to hand, that being Leopard, well all I can say is that my little G4 power book and the new beast of an iMac upgraded flawlessly and work like a dream, and time machine is without a doubt the BEST backup software invented to date.
As someone who loves the stability of Linux and still use it to host my companies web sites (I'm a web deisgner nowadays!) I always wanted a version of Linux that was as plug and play as windows, with off the shelf packages that were as good as or better than the Windows ones I loved (things like dreamweaver, fireworks, Photoshop, Outlook).
Well OS X and in particular Leopard scores 10/10 for me, okay it will have bugs initially (like In-Design CS3 wouldn't work anymore) but show me a windows O/S that is even half as bug free as leopard and I'll show you the day Microsoft was bought out by Apple, because truly, it's superb.
I suspect that there is something wrong with some people's hardware, or incompatibilities with particular models of machine, but this I'm sure will be ironed out, after all Tiger was wonderful, so Leopard is bound to be better.
XP took years to get stable, and no doubt it's still the best software to have left Redmond's secret programming labs, and it was the best O/S i'd ever used and I praised it day to day, but come one people (yes you know who you are Windoze phreaks) give Apple a chance, try Leopard and if you seriously aren't impressed then don't bother buying Vista which is your current upgrade path, cos boys they've just about tried and failed to rip off pretty much everything apple has put into OS X, can't wait to see the next version of Vista, is 'Time Vault/Traveller/Backup' the next big new thing to come from the imagination of Bill's Boys!