I don't know whether this is the right place to post this, but this is my feedback:
Installation was smooth, I did not watch every step, but when I came back to my computer it had the "Service Pack 1 has successfully been installed"
I am running a dell Inspiron 531 if anyone is interested and it is an AMD Athlon 64 X2.
It has added around 10 seconds to my startup time, which is annoying, but does not effect me greatly. This mainly occurs during the "Welcome" screen, and when my actual desktop appears, several programs I have on startup, Uniblue SpeedupmyPC and NOD32.
One strange thing I notices was on my Control Panel systems screen, It used to say I had 3.5GB of RAM, I had ordered 4gb from DELL, but I thought this was just a small memory loss due to non-user technicalities, but now after installing Service Pack 1, is says I have 4GB like I should.
Although Uniblue still says I have 3.5gb.
I have noticed a small drop in RAM usage after installation, used to run at about 1.1GB with Mozilla open, now is about 900mb.
I have both a logitech mouse and keyboard which did not cause any problems, as I 've read they have.