Guerin Reviews 

In terminal-area, 5 min. by shuttle, good prices with all risk insurance, excellent staff (fast, efficient, polite)

Very efficient, good conditions of cars, drop off is hassle free - I always use Guerin when I go to Lisbon

Great value. Excellent service at the airport. Friendly staff. Efficient with minimal wait.

This company operates in an unreliable and unprofessional manner. Do not go there alone, and do not rent without documenting everything: photograph the vehicle, insist on proper invoices for any charge, and bring a witness if possible. As a woman travelling alone, being confronted by three aggressive staff members and pressured into paying without documentation was a genuinely difficult situation — not just poor service.
Roadside assistance is poorly coordinated: phone support and the on-site breakdown team do not communicate, resulting in unresolved issues and broken timeframes.
Staff conduct at the Aeroporto Madeira station is hostile and unprofessional, including dismissing documented facts and confronting customers aggressively. A supervisor was brought in on more than one occasion in an attempt to de-escalate the situation, without success.
Billing is not transparent: charges were collected on site without a proper invoice, and a later formal invoice (€496.69 for “damages” and a “damage management fee”) was issued for an incident the company’s own accident report records as unconfirmed. No supporting evidence has been provided.
Complaint handling is inadequate: a detailed written complaint received only repeated automated responses, with no substantive reply.
Overall, this reflects a pattern of unclear costs, unverified charges, and a lack of accountability. Proceed only with full documentation of every step, and consider not going alone.

Great prices, rapid no fuss pick and and drop-off. Friendly staff. Great vehicle, Sensible amount held on credit card.

Car was as described and collection and return was straightforward.

Everything went super smooth!

The ease of picking up and dropping off was amazing! The car was impeccably clean and easy to drive. Would definitely use Guerin again.

Staff were friendly and car was excellent. Only call out was i was charged for cross border insurance for the entire 8 day hire period of the car when I advised the 3 days I was crossing the border. A bit of a ripoff.

Good experience, fast service

Very comfortable car. There was some issues with the car not mentioned on check-in.

Everything worked well
No effort to sell extra insurance. No hassle during return of car
Can only recommend

Everything went perfect from the beginning till the end !
Top !!!!

By far the best car rental company I have used in the Algarve. The collection process was fast and efficient and the vehicle provided was very clean and new. There was no pressurised up selling of extra insurance. Thank you Guerin we will definitely be using you again soon.

Everything is good. Staff were very nice and helpful. She explained everything about the rules and regulations i should take care off.

Abusive practive!

Obligation to pay 193 euros to change vehicles and have a 5-seater vehicle instead of a 2-seater utility vehicle, never mentioned in the internet rental. A rental agency practice just unacceptable!!!

Staff were friendly, helpful and efficient. Less than 10 minutes to sort on collection and 5 on drop off. No pushy sales for extras. Just what I needed and would use next time.