I personally still havent found a Salesperson in any store or a TechSupport from ANY Company that makes Keyboards to outbeat me in knowledge on ANY machine laying on the floor in the store...especially here in SAM ASH where a lot of them are my friends now i usually end up helping customers and the Salepersons listening to me and learning from it...that said...tell me how in the hell a person like that would sell an arranger or any keyboard at all...especially when it comes to arrangers NONE of them has a CLUE even what the machine can do...they are just simply mute.