The Mazda3 is what happens when a compact car decides it's too good for its price bracket, and the interior actually backs it up. The 2.5L engine is bulletproof (owners routinely see 200k+ miles), but the 2019 redesign swapped the old multilink rear suspension for a cost-cutting torsion beam that blunts the handling sharpness earlier models were loved for. If you want a refined daily driver that feels expensive and runs forever, this works; if you want the sporty Mazda everyone raves about, hunt down a 2014, 2018 instead.
The Jetta splits the difference between appliance and enthusiast tool, sharper to drive than a Corolla, 35-40 MPG real-world, and a GLI that borrows the GTI's 228-horse engine and adaptive dampers. Electrical faults are the tax you pay: door sensors, window regulators, and wiring issues shadow every generation, and this car punishes owners who skip oil changes far faster than a Civic would. Buy if you want a compact that rewards engagement and you keep maintenance records; walk if you need a car that forgives missed services or you can't tolerate the occasional quirky fault.