Picked up the 9.5 as a second boat after using the Malibu Two as a tandem (now solo).
The first big thing about the 9.5 is the increased stability. The W-shaped / hotdog-in-a-bun hull shape makes it feel rock solid on the water.
The new seat is very comfortable and easily adjustable. Serious upgrade from the ones you get with the Malibu Two. The storage wells are huge and have their own scuppers for proper drainage. The built-in storage in front of the seat seals well but isn't huge... good for smaller stuff like keys, phones, etc. OK put in a excessive amount of cup holders but it looks like a couple can be converted into rod holders.
This is a killer little kayak for anybody wanting to get started with something decent and not break the bank.