I had the 17" but ended up downgrading to the 15". While I loved the screen res of it, I hated the size of it. I'm a college student so I bring my mbp everywhere. The weight wasn't an issue at all but just the size of it meant that I couldn't randomly sit somewhere and pull it out. I found myself trying to not use my computer because it would be too much of a hassle to pull in and out. Thus, I went to the 15". I still miss the resolution of the 17" but I got the high res 15" and it's ok ...