We have an '08 Liberty, pretty much same vehicle. My wife had it when we met. There are much more reliable vehicles to get. We have just spent too much having the HVAC basically rebuilt from cascading failures. If a new car was in our finances (almost there) we would have replaced it awhile back before pouring money i to it. Prior to us being together for the last two years, she had been nickeled and dimed for repairs of various kinds over her five years of ownership.
The 3.7 can be very reliable, but there were several with valve spring or other issues that had problems at around 120,000 miles.
It's a cool looking vehicle, but knowing what I do now, I would not buy it…