The process of booking a car a few days ahead of a weekend can be frustrating -- you spend the time choosing a few only to get a (slow) reply from the owner that the car is not available. When you finally do get one, you have to meet the owner to get and return the key (so no early/late hours). All of this for prices that are comparable with regular rental companies, even for older/not as nice cars.
I've been happy with Greenwheels as well. They're available at most Dutch railway stations so you can easily travel the last miles to a destination that is hard to reach by public transit. It's also handy that you can tie your Greenwheels subscription to your OV-chipkaart (the national public transport card) so you don't need to carry an extra card to unlock the car.
I've used Getaround as both a renter and owner, and have had a pretty positive experience. The killer featured is the "Connect" kit they install in your car, that lets a renter unlock the car with a smartphone -- no need to coordinate key handoff/pickup. It also gives you free 2FA for your car; you need to unlock with the app before the key will start the engine.
The process of booking a car a few days ahead of a weekend can be frustrating -- you spend the time choosing a few only to get a (slow) reply from the owner that the car is not available. When you finally do get one, you have to meet the owner to get and return the key (so no early/late hours). All of this for prices that are comparable with regular rental companies, even for older/not as nice cars.
I ended up a happy customer of shared "neighbourhood" cars -- you know when the car is available, and can use it 24/7 with your card. https://www.car2go.com, https://www.greenwheels.com, http://www.connectcar.nl, etc.