AJ,
For me an arranger has to have styles either preset or widely available that suit the music I play - which is light jazz and old standards - including the latin stuff.

That is the problem - how does a company create such an instrument that suits a multitude of players playing different kinds of music. Perhaps offering various preset style sets when ordering might be the answer.

Also, to many gadgets make it very hard to use live and almost impossible for the serious gigging musician to learn about all the features of any keyboard - not enough time to do both.

As for realistic sounds - well - how many opinions do you want? Everyone's experience and frame of reference is different so how do you please everyone? As an example - how many arranger players do you personally know that have never sat in the audience of a major symphony concert? How would they know what a live string section really sounds like? Or, how many players have never really heard a great big band like Basie or Woody in person to know what that really sounds like?

The issue of weight always comes up on this forum as well as 76 vs 61 keys. Well, again - if you are a certain age weight is a problem - but not for everyone.

I also want a completly finished arranger when it arrives - not one that I must wait for "upgrades" to fulfill all the pre-release "hype" and promises.

Hammer