I can't remember if they have Buchanero at the bar, but you do get it in your room along with Cristal.
I preferred Buchanero at the Iberostar but I preferred Cristal at the Playa Pesquero, but never saw the Mayabe (in a silver can) at the Iberostar.
I am sure you will have a good time there, we did, a big party of us

Thanks evohicks.
Can't wait to get there after this awful winter.