Since it's a new boat, you probably have as much experience with it as anybody, be sure and post up any pictures and videos when you get to check it out.
According to the Sea Doo specs it has one 600lb ballast bag in the ski locker. You would probably need to add another 1000lb or so near the back to make a noticable improvement in the wake. Here is the only vid I have found so far of people boarding behind this boat:
Of course the wake is frothy in the middle from the jet wash, but the ramps actually don't look too bad.
It would definitely need more ballast for surfing, but once you have added it the boat should be good for surfing. Several people on the Yamaha forums have plenty of success surfing behind their boats, and they are pretty similar in design.