My 2005 Neon has been very reliable. Only one repair (crankshaft position sensor) at 48,000 miles.
The 2.0 liter 4 cyl is peppy even with the automatic transmission. The gearing is a little tall, but it runs 3,050 rpm at 80 mph which helps quietness and MPG at highway speeds. The engine uses virtually no oil between changes at 3,000 miles.