@tess19 I have.
I got my RHD Model 3 Performance in June this year. Returned it within 7 days as unfortunately the seat/seating position were causing me extreme discomfort, especially on longer drives.
Return process was super easy and quick, just a quick inspection by Tesla and had to sign a form to initiate the return. Full refund took 10 business days. It was a cash purchase.
Ample time to spot paint defects before signing for it. I went over my car with a fine tooth comb, before signing for it, and the paint was flawless (I was pleasantly surprised) - no misaligned doors or panels either.
Bear in mind that if you have had a test drive, then the 7 day return policy from Tesla would not apply.