The 9 Cell isn't as bad in real life than how it looks in photos. Before I got my laptop, the 9 cell really bothered me. I wasn't even going to get it, but my co-worker, who got the 1210, said he never uses the 6 cell that came with it and bought the 9 cell later which he uses all the time. He insisted that i get the 9 cell. I explained to him that the 1210 battery lays flat while the 1330 9 cell props up. My biggest problem with it before getting the 9 cell was the fact that it tilted the laptop up. However, when it finally came, it turns out the battery was smaller than i thought, and in fact, the slant made typing even easier for me than without it. when you put the laptop into the case that comes with it, the size from back to front is barely noticeable. Also, i find my self uses the 9 cell as a handle(maybe tat isn't a good thing to do) which gives me a better grip when i'm carrying it around. With a laptop this small, you'll be doing alot of carrying.
All in all, I love the battery now, i get 4-5 hours without having to plug it in, and i can take it anywhere.