I have owned my MacBook for the past two years, apart from the occasional application crash (about once a month), I have had no problems.
My battery life has shortened a little, but that is to be expected after 2 years, it still holds around an hour of juice from a full charge.
I use a pc laptop for work but find that when I get home the Mac suits my needs perfectly, everything is clear and easy to use, and it is pretty difficult to actually break anything which means it is good for people with little experience with computers.
I have only added a few extra applications to the bundled software so that I can open certain files and edit word documents with Microsoft Word. Every application installs extremely quickly and fuss free, a welcome feature after installing programs on a pc.
Once you figure out the trackpad with it's gestures you'll find it hard to go back to standard trackpad, it feels natural and smooth. You can even set it up to right click when tapped with two fingers.
The size of the MacBook means that it is light and easy to carry around with you, this also means that the screen is a little small for my taste, a small price to pay. The screen is clear and bright and easy on your eyes even after a few hours thanks to the easy brightness adjustment buttons.
In summary I highly recommend this laptop, a newer version is available now, however if you need it for web browsing, document editing etc this is definitely up for the job!