I've had my 9's now for 5 months and about 350 games. That's after having SST8's for about 5 years.
The 9's are solid and comfortable. They're an excellent balance of comfort and support. For contrast, I bought a pair of Pyramid HPX (Brunswick TPX-U) shoes. The HPX's are cushy comfortable, but the jury is still out for me as a total package in the areas of support and durability.
In any case, good choice on the 9's.