So much more to it you havent even touched on there .
I've been playing since the original game and seen the game morph into what we have now . Cataclysm is so much more than you have brushed on in your review . A lot of the donkey work for the expansion was laid out in the previous patch which gave us the new graphics and environments . The old azeroth is gone . The quests changed and 1-60 is now a whole different game . If your aim is to do 80-85 your missing an enormous chunk of the magic Blizz has worked . Old dungeons have been revamped with new bosses and mechanics .
Rather than mess about in the choked 80-85 zones I decided to wait and bit and play a worgen . I agree Gilneas is an awesome zone . But once you leave you end up in Darkshore after a brief trip to Darnassus . I have now done the quests there end to end and Im pretty sure there isnt an original quest left . I did most of them on my Gnome rogue to farm Darnassus rep for a nightsaber mount as I hate robot chickens .
The amount of care Blizz have taken on this expansion is epic they really have changed the world although I cant help feeling they may have used Deathwing to tear up the bits they didnt particularly like in the first place . What better way to sort out zones your not happy with than to get an irked off Dragon to level it for you . Farewell Auberdine and Southshore you really wont be missed :p .
Add to all this the changes to classes and Glyph changes plus the long awaited (by some) return of crowd control in dungeons and archaeology and masterys and you have an entirely new game .
If you got bored and left its time to come and take another look . WoW once again is destined to remain top of the mmorpgs for a long time to come .