Tried some applications on ReactOS NTFS installation and ran CHKDSK over it at the end, no hard reboots were done. ReactOS was still perfectly bootable after that.
Timestamps:
0:39 - trying the installers and themes
1:44 - trying the applications (extracting the installers)
2:20 - VLC Media Player
3:16 - Firefox
5:20 - HTML5 test
6:31 - Acid3 test
8:02 - downloading ReactOS BootCD (download complete: 10:25)
14:18 - trying ReactOS BootCD in QEMU (failed)
25:14 - trying ReactOS LiveCD in QEMU
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