I love my Keystep for the smart sequenceringy thingy and connectivity. I also use it as a midi channel swapper - [shift+key] easy! Smart device.
Reface CP for playing I like better. But hardly use it for playing, our piano has a midi connection so … that’s the real not so portable deal.
I stopped taking gear with me on all vacations, less worries. I listen to silence instead and nature - receptive senses, etc.
Family happy, me happy.
&
Recharged for fresh soundwork or ready to finish things that are overdue.
Have a good trip!
T.
PS: a small often local instrument I’ll buy on the spot or a few LP’s … it never really ends. 
PPS: Got mixed up with the VACATION post… good trips anyway 