I'll try to be as objective as possible. I would say I'm divided; there are pros and cons.
Firstly, the communication during the reservation on the website is simple, the rental company responds quickly, and they are reassuring about the rent conditions.
One great point compared to most rental companies is that they don't require a deposit, and they allow you to take the vehicle out of the country without any extra charges.
The vehicle is also delivered to you at the airport for free.
Furthermore, the car is affordable compared to traditional rental companies. The keys are handed over quickly, and the rental process is based on trust.
On the downside, the vehicle seems to be in worse condition than it appeared in the website photos, and no vehicle inspection is conducted, even though the rear right door is dented, the tires are almost worn out, and the clutch is worn. However, after a few minutes, you get used to it, and it's not too bothersome. I just expected the car to be a bit less worn. There is also no vehicle inspection when returning the car; everything is based on trust.
It's important to note that if you plan to leave the country, you must absolutely have a green card, which you can obtain either from an insurance agency or at the border. Even though the rental company allows you to take the vehicle out of the country at no extra cost, they do not provide the green card, and the insurance wich is in the car is only valid in Albania. There was a misunderstanding because we thought the rental company was insured abroad. In the end, the green card cost us 40€ for 15 days (the minimum possible).
The most troubling aspect for me was that after a few days, a message appeared on the dashboard indicating low oil level. Upon checking, there was almost no oil left in the engine. I contacted the rental company via WhatsApp to inform them, and since we were in Greece, I proposed to advance the expenses to buy a container and top up the oil level. They thanked me and told me I could add 1 liter of 5w30 oil. I later confirmed that I had indeed topped up the level after finding oil at a Shell station in Greece, which cost me 18€ for the container. That station was the only one available at the time, and I didn't want to risk driving without oil. So, I attached the credit card receipt to my message to prove the price. When returning the car, I showed the container to the rental company to prove that I had added oil, and they simply said, "Okay, so you paid 18€ for it." I replied yes and mentioned that I found it rather expensive, but I had no other choice since it was the only open station. They just said, "Well, everything is okay then, goodbye." I naturally expected a refund for the oil I had purchased, but it didn't happen. I didn't want to get into arguments, so I let it go. I just find it unusual that the customer has to pay for the missing oil simply because the levels were not checked before delivering the vehicle.
In conclusion, I would say it was sufficient for us despite these issues. You won't have all the amenities of traditional agencies, but you might get a vehicle in slightly worse condition than you expect. It's a little bit more positive than negative, I would rate it 6/10 for the ease of booking, the quick response time and the price. I deduct four points for the lack of transparency, the overall of the car and for the simple fact that I wasn't refund for the oil.