I have played in all situations from rock/pop bands, big bands, tribute, jazz, solo, and as I always explain to people who view arranger keyboards as somehow cheating? (I use a PSR3000 a lot for functions)and explain that its the only real solution for replacing a full band, so its just a tool to meet a specific need. I point out when questioned about the arranger and how it works is that I play exactly the same chords, same notes, same solo's ect as if I was playing in a completely live band and in that situation I would follow the bass player and the drummer and that is precisely what I do with the arranger but the need for the other musicians has been replaced by digital electronics, in actuall fact I find its actually more mentally taxing playing an arranger out than playing in a totally live band, you can hide behind other musicians and turn down if we don't know the song to well.! (how many times have we done that guy's)....with an arranger it play's what YOU make it play and boy it sounds bad if you slip outa line...
I recently visited an area where nobody new me and dropped into a local music shop, asked to play a used Tyros on the shop floor, after about 5 minutes the salesman came up and said 'I've never heard it played like that before' and noticed straight away that I was not your usual ham fisted dabbler, so no matter what instrument you sit down and play..if your musical ability is good then it should not really matter what type of instrument you prefer to gig with.