I have one, I bought it three weeks ago. It's great, I have only put one tank of gas through it so I can't say I have really tried it out. It drives great and with the 4:10 rear it performs very well. It does experience a turbo lag and it is something I will have to get use to. I think the fuel economy may be OK if you drive it wisely, but it will drink gas if you keep your foot in it. On a scale of 1 to 10, I give it a 8.5. It's not a Lightning, but close and better economy and handles well. I am happy to own it.
Stewart H. Regarding MPG on first tank. I got 20.4 MPG according to the computer read out in the truck, but when I took the gals used and the miles traveled, it came to over 21 MPG. Difficult to know how full the tank was from the dealer and whether or not the gas station completely filled the tank. But I mostly babied the truck for the first tank and I have a feeling that 20.4 MPG isn't a fair number. I am not driving the truck very much right now, this is just my fun truck so it will be a week or so before I fill again, but I will post again when I fill the second time.
I own one. First tank I got 18. All city and playing around. Turbo lag is very interesting. I've drove a lightning (gen2) before and it's about the same, as far as power. Minus the turbo lag. Love everything about this truck. I would agree that it sits pretty high. If your looking for a performance truck, this one will shine with a tune. I'm going to have an SVT shop tune it, so I can keep my 7 year ext warranty. Then have my dealer lower it 2/3 most likely. I saw one they did for barret jackson and it was perfect.