1. the master/slave cylinder for clutch gets damaged faster than most available cars. It created problems in shifting gears specially going from 2 to 1 and vice versa. I don't know how applicable this would be in newer cars or even with automatic transmission.

2. the catalytic converters for altima are not good as compared to honda or toyota. If for any reason, your engine is running rich (either due to failing oxygen sensor, problems with injector or inefficient compression), the first thing that will go bad is the front catalytic converter which is not the case in honda or toyota. the exhaust will clog up, creating a back pressure to the engine and your engine is dead.

i would prefer to go for toyota over nissan and honda over both nissan and toyata.