First and foremost (and I really can't emphasise this enough) CHECK YOUR SYSTEM SPECIFICATIONS BEFORE BUYING THIS GAME!!!!
If I'd have read a few more reviews first I may have paid more attention. As it happens, I didn't, and have had to wait almost two months to play the game, having now purchased a new graphics card, more memory and a new DVD drive!
It's deffinately worth the wait though. The gameplay is good, the graphics are fantastic and the level of customisation available is awe-inspiring (but HIGHLY time-consuming). The EA Exchange and store are well worth a look for improving on the limited objects you get with the initial installation, and the range of activities available in the game for your Sim to acquire skills etc are excellent.
I haven't even begun to explore the full extent of this game, (there just aren't enough hours in the day!), but what I've seen so far is top-notch.
There are loads of forums and websites online to provide you with valuable information on any technical issues you have (like driver issues and game patches) or simple gameplay advice. I would also recommend investing in a copy of the gameguide (eBook or hardcopy) to help you get the most out of this game.
If your computer is up to scratch (or you're prepared to part with more well-earned cash in order to make it so), BUY THIS GAME.
Say goodbye to your family, ring in sick at work, turn your phone off...and lose yourself in this excellent addition to The Sims legacy.