The Airush Lithium 9m kite is very similar in characteristics to its Lithium 12 bigger brother.
There is one small improvement - this kite now has elastic securing cord loops to hold the velcro and plugs secure for the air dump valve and inflation valve on the bladder. (This may now apply across all the Lithium kite series). Previously, these were secured with only velcro fold over tabs.
The 9m kite shares the same bar as the 12m kite, so if you have one of each you effectively have a spare bar.
While the kite does have less surface area than a 2009 Cabrinha Switchblade 10m kite, it feels like it has equivalent power.
Overall, I rate this kite 9/10. It is a great kite for beginners through to advanced kiters.