The car is new. No problems.
The 4.0 V6 has good power.
The automatic transmission shifts very smooth.
Gauges are very easy to read.
The shaker 500 sound system is great.
Front bucket seats are very comfy.
The windows are big and easy to see out of, very few blind spots.
The side mirrors are large making it very easy to see what's behind you.
Congrats on your Mustang. I also have a 2007 V-6 automatic and I love it. After a gas-guzzling V-8, the more fuel-efficient V-6 is a very pleasant surprise. It performs as well as my older V-8 did and rides much better. I have done a lot of custom work on mine and added a cold-air system to it to boost power a little. As I can afford it, I plan to add dual true exhausts and make a few more engine mods. I love mine, and it's a very fun car to drive.