There are a lot of opinions about synthetics; I like using the "if you like it, use it".
I would; Ive run synthetics for years, putting them in rigs with well over 100,000 miles. But mostly I do it for my own convenience. I run them much longer than conventional, just changing filters, and it makes me feel better in some instances because I feel they will offer a bit more protection than conventional.
Now I have however repaired a Peugeot transmission that got Royal Purple in it, and then shortly thereafter my daughter popped the clutch and destroyed it.
Not really worth the extra $50 in oil when its allowed to pour out onto the parking lot.