In my experience it is not a big deal to manage and arranger keyboard as there is so much help on this forum. I use Solton X1 and it is a good keyboard. I love piano and therefore I bring electric piano with me also . Not many peo[le do that But as you are used to acoustic piano it would be a great option. Left hand --on a good arranger and right hand on piano, and occasionally playing on right hand of arranger !! It is being stated now that there are pretty good pianos in most modern Arrangers and perhaps you will be pleased. I love x1 but piano is not good enough for me on the road - not that I'm very good but there is just no comparison to real piano or to (electric piano -I use Corg SG1d 10 yrs old but great piano. Getting used to one is perhaps a matter of getting what you want/need and getting at it.Basic operation is instant !!!.
Best of luck Pierce.