Not surprised, MPJ is mine, and Ainge's binkie. I think within a full year of recovery, and the necessary conditioning to ensure his body holds up, he'll be very fun to watch in a few years.
His health can be very worrisome, but that is just how it is. Taking a flier on a guy projected to be top 7 lottery pick, ended up falling into the 14th pick. It's a no brainier, just like Williams. They pan out, or they don't.