I don't think it's too much to ask a TA to match a promotion. I'd wait to book room blocks until you know how much would be needed at GRM vs. EDR to qualify for those promos though.
My assumption is that unless folks are traveling with kids, they'd probably prefer to stay at EDR over GRM. I'm not sure how comparable the room pricing is between the two - since GRM is set up for families and having kids in the room vs. 2 adults at EDR. that might factor in to where your guests decide to stay.
@AllieH - Thanks so much and you are right, we picked Generations/EDR for the "best of both" factor. Since my 9 year old niece is definitely in the wedding and I will most likely have 2 little flower girls, we had to do a family friendly. We initially were looking at Azul Beach and Sensatori but fell in love with the Generations Riviera Maya/EDR idea when we saw Generations during a Karisma Dress Rehearsal visit. So far the pics over on Tripadvisor look great and there have been nothing but rave reviews - which makes me excited. Now if I could just see pics of the sky deck & where receptions etc are held.
Now that we have the date & resort, we are trying to determine room blocks. Do you have any suggestions? We are expecting 50-75 people and I know at least 5 rooms will be at Generations. I'm thinking we should request 30 and split them 15 and 15? Almost all of my guests (except my sister/brother-in-law, college bestie aka mother of the flower girls, and a family friend who's bringing her teens - never leaves them home) will be adults.
I'm waiting to hear from my TA on if she can match the current offer I saw on another thread. Apparently Karisma is offering $1000 off for food/beverage if you book a Generations wedding & a free Catamaran cruise (for up to 40 people) with up to $1200 in food/beverage credit if you book 10+ rooms at a Karisma property. I hope inquiring about this offer isn't asking too much.