Can help out a bit with some info on how the 7S rides - had mine around a year now...
It is a real fun board, nice shape, heaps of volume which helps it surf well in small to medium waves.
I have the 8ft and have had heaps of real nice waves in up to a bit over head high (haven't had the chance to try bigger yet). It excells in long rides where you can carve heaps and do smooth turns along the wave. If you like any quick snappiness in the board at all this will not do - but if you're after the fish style cruisy surfing and fluid carves it is fun as!
Pros:
-Paddles into fat waves you never think it will (much more like longboarding)

-Easy board to use, trims beautifully along the wave (improved my surfing heaps)
-The speed/power from the board is surprisingly good.
-Quad/Thruster FCS options (I use quad and love it)
Cons:
-They are pretty pricey (Rudd bought mine for me in last years handout).
-Built in thailand or something I think? Build quality is good, but not brilliant.
-Everyone seems to have one.
-Very flat. Nose dives on take off are real common until you get used to it and its not really ideal for steep drops in hollow waves (although now my skills are starting to improve it's not so bad).
In summary I would definitely get a board this shape again! I love this style of surfing. I probably would get a custom one made locally though (I feel bad taking my money global when there are so many awesome shapers around).
Very good board for what I want to do and I have so much fun on it I can't even describe it in words!!
Would I get the same again? probably not. Would I get a similar size/style of board again? Definitely!!
Hope this helps!