Are you familiar with MartinKennedy's pool build? It's amazing. His thread is "New Build in South Texas". On post #141, you will see a photo of the bags of finish for his pool. Finest Finish. I believe it's a different line from yours, but I can't imagine he would have used a product which wasn't good quality.
I've read an important point to consider is who will apply the finish. So do some research on the plaster company in your area who applies the finish.
It's a million decisions, isn't it? I won't miss that when my pool is finished! You're doing great - one decision at a time. Suz.