Where in Portugal can you rent a car without huge deposits and pitfalls?

Many people recommend renting a car in Portugal if you want to see more than just the cities. In order not to waste time searching, I booked a car in advance through the https://roscar.pt/car-rental-funchal/ website. It is convenient that you can choose a car and pick-up point online. Upon arrival at the airport, everything was ready, and I set off on my journey around the country without any problems.