This is my third Jeep and my first 4 cylinder Jeep. The TJ's ride is a 500% improvement over the YJ and CJ. The interior is car-like and even has airbags. The 4-cyl is definately not for speeding although I manage to drive 70-80 mph everyday to work. Gas mileage is much better going slower (60-65). There are always discussions going on about whether it is worth getting a 4-cyl, having had 2 I-6 I can say it is much better on MPG and satisfactory on the highway (and costs thousands less).
Soft tops are very easy to remove and put back.
Almost car-like ride (at least compared to the YJ and CJ.