I also upgraded from 6.1.7 to 6.2 using 1.03b. Also had to force legacy bios and manually updated the USB stick to be the boot device. So far, I'm seeing better performance while copying large files. 6.1.7 would stall sometimes and would take multiple seconds to resume. I almost never see it in 6.2.
So far, 6.2 has been a great update.
Anyone looking to upgrade using 1.03b need to have a monitor cable and a monitor to change bios settings.