Does this work directly in a car with a 12V outlet?
Not with a standard 12V socket. Crock-Pot supplies it with a single detachable cord and no car adapter, so it is built for a regular outlet. It can run from a car's 120V power outlet on road trips, so if your car has one of those, it can work there.
How long does it take to heat food up?
Crock-Pot says it heats to 195 degrees Fahrenheit within 2 hours. In practice the range is wide: food can be hot in 15 to 25 minutes or need plugging in one to two hours before lunch, which is why heating time is a mixed point. If timing matters, plug it in early.
How durable is it with regular daily use?
Durability is mixed, and a small minority are unhappy. It generally holds up to reliable, ongoing daily use, but the weak points are specific: a carrying handle that broke on one unit, an inner lid that can be fiddly to unlock when cold, and marks appearing on the inner pan.
Is the inner container really removable and dishwasher-safe?
Yes. Crock-Pot makes the inner container from stainless steel and it lifts out, and the product is dishwasher safe, with a BPA-free plastic exterior housing. Cleaning is simply a matter of lifting the tray out and putting it in the dishwasher.
Will it actually save me money compared to buying lunch out?
For regular users, likely yes. Where a workplace has no microwave, it can pay for itself quickly against takeout bought every shift, and the savings on lunches out can be enough to justify a second unit. Actual savings will depend on your own prior spending habits.
Does it keep food cold as well as hot?
Yes. Crock-Pot says the thermal insulation keeps food hot for up to 2 hours or cold for up to 3 hours when unplugged, useful for picnics, sporting events or tailgates in addition to its primary hot-food heating function.