LiteOn is relatively good at updating their firmware database. Sometimes, they just may not get around for OEM rebadgers like AOpen, Sony, etc. If you will always be using quality media like MCC or TY, then you may not need to crossflash it to a real LiteOn.
Like jbv said, if you do crossflash, you will lose the warranty. If you can use the XSF utility in real DOS (here), you can back up the YTS1 firmware, so at least you can always go back to it.