Just back from a visit that was a first time for some of the family. We had four park days and 1.5 of those days were rainy and miserable for rides as so many were down....even with LLMP. Although expensive, I bit on the Premier Pass for our last day which was a great decision for the five of us. It honestly made our trip....we had such a great time with improved sunny weather and no worries on timing of rides, etc. My feet, on the other hand, were just screaming....30K steps!
It was a last minute decision but we found out that we could use our Premier Pass and our LLMP in conjunction so we could double up on some rides.
If you can afford it with no worries as to budget - it was great!