ATV rental, who to go with?

Going down Memorial and staying the week with the family, 4 people. Looking to rent an ATV for the day. I see all the rental spots on the road going the backway from Sandy Beach to Calle 13, kinda by Del Mar and the entrance to Playa Bonita, I think it's Calle 3a. Anyhow, who's the recommended place to rent from? We would like to rent a 4-seater Polaris RZR, but I don't recall seeing any of those lined up on the road. Any recommendations would be appreciated.
 
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