No, I bought it used back in July. There are no signs of why the buyback occurred. The battery is the original, all of the paint marks are all over everything, etc... I can't explain why the title is branded "Lemon" other than Tesla buying it back to remove the free supercharging and free premium connectivity. It just doesn't make sense.
To the OP: If it still has warranty left on it, I'd say if you could get a reduction in price of $5000 or so I'd buy it. However, dealers are all over the place with pricing on the Model S. There are too many options (premium sound, air suspension, Autopilot, extreme cold weather package, MCU I or MCU II, wheel size, freebies, etc... That it takes a lot of work by you to compare pricing between 2 Model S of the same year and trim. I find many Model S listed as dual motor but they are really just RWD. Dealers really don't know what they have and the pricing websites (KBB, Car Fax, etc..) really can't accurately give you a good price comparison.