Well, glad to hear that someone out there isn't having any issues. My W8 desktop and W7 laptop both seem to be slow to notice a file that needs uploading
Strange thing is, usually when this would happen, all my folders would show green checks on them but if I went into the folder where I knew I uploaded a file, the file itself would be marked with the sync icon, the folder would be marked incorrectly with the green check, and skydrive would report up to date. Searching the problem online informed me that I'm definitely not the only one - I just kind of assumed it was the way the app worked, actually (i.e. Say it only checks for updates every 30 - 60 minutes... of course you wouldn't normally notice it, but you would if you had to leave the house right after saving a file and want to make sure it uploaded so you can have it where you're going)
Syncing is slow for some people. A couple threads with others having the "painfully slow" speed (i.e. One person taking 20 mins to upload a 67 mb file):
Why is SkyDrive so slow?? - Microsoft Community
uploading files to skydrive is so slow - Microsoft Community