Secrets playa-blanca-costa-mujeres

Hi all. I'm looking to book a stay for my son and his fiance for their honeymoon at the end of July. I'm looking to get them the Preferred Club Junior Suite Ocean View room and need some input. I've never stayed at a resort ever so this is new to me. Any thoughts on what buildings would be best for these rooms? What should I ask for when I call and set it up? Any inputs on this resort that I should pass on to them? Any tips and tricks? Favorite excursions etc? Thank you all for the help.