when I remote uploaded a bunch of links from Megashares, some links when through quickly (5-15 mins) which is usually what happens but some only went through sucessfully after 6 hours or so while others remain in pending . Also, I've seen files that went through sucessfully but the file was corrupted in the file manager.
I don't think it's because of any slow speed from MS because I can see my bandwidth in my Megashares acc used up and the download counter of the file increased when the download is completed by FS quickly. It's just that the uploading by the FS servers to the file manager takes longer than usual.