Ringing Ceders

I’ve booked everything but the rental car for the summer break away in Spain but the answer as to where and how to book eludes me still. There’s so much to choose from it’s tough deciding on who to go with as it is really hard to compare the prices between different companies who offer similar but not identical features as part of their rental services. I want to go for budget, because I have some budget coupons that will save me money when booking through them, but I’m not sure. No one I know has ever used budget so I’m not sure about them, but I suppose they are alright.