I was very impressed by the Model S and have reserved one. The car looks awesome, is quiet because it's an EV, and offers great range - up to 300 miles @ 55 mph with the largest battery pack option. It performs extremely well. Acceleration is immediately available on demand, and the 0-60 times range from 6.5 secs to 4.4(!), top speed 110-130 mph, depending on model. I also spent a half hour playing with the 17" touchscreen at a Tesla store. It offers streaming music to Google maps and everything in between. The car has the most storage space in its class, with a "frunk" (front trunk) where the noisy, polluting gas engine would be in an old-fashioned car. Also love the glass panoramic roof!
Designed and manufactured in America; looks beautiful; great acceleration and range options; 8 year battery warranty; never have to pay for gas again; in CA (PG&E), off-peak time-of-use electricity ~$20/month for 15,000 miles per year to charge overnight; can plug into any 220 or 110 outlet, or "fast charger"; aluminum body; excellent crash safety (8 standard air bags); very low Cd and low center of gravity; excellent handling; air suspension option; and seats five adults, plus optional 2 rear-facing child seats.
Front console and adaptive cruise control option.
Note I was required to rate "reliability", although I have only experienced the "Beta" Model S vehicle. The first production units that will be sold to us customers are due in July, 2012.
We have paid $5,000 (refundable) for a spot on the production reservation list.
They also had a $40,000 Signature/Signature Performance reservation option limited to the first 1,000 customers which has already sold out.