I've had the acceleration boost since May & don't regret it, well worth the cost (especially when you leave a supposed supercar at the lights when they weren't expecting it from a plain looking Model 3)
....however, soon after Mrs wife noticed one of her eyes was blurring & a visit to the optician confirmed she had a detached retina. He asked if she had experienced any sudden movements or jerks to her head - guess who/what got the blame for that!