Just a a bit about my experience, for what it is worth.
A couple of decades ago I had more or less given up on the classical guitar because of frustration with my right hand.
I wondered about the piano (which I played a little some 40+ years prior) so got hold of an oldish digital piano to test out the idea. It was surprising how very quickly I picked up the bass clef and the position of the notes after such a long time and things were going OK. So I got a recommendation for a teacher.
That was when the digital piano began to be a significant problem - the feel of the action was so different to my teachers grand that the lessons were very difficult. Eventually, after some research, I decided to splash out on a Kawaii CA63 digital piano (then pretty expensive), which had a touch very similar to my teachers Schimmel grand - and things got a whole lot better.
I did reasonably well with the piano - eventually playing such things as Shostakovich Prelude in C, Janacek "Our Evenings" from "On an overgrown path", etc - bit I was seduced back to classical guitar.
One interesting aspect of the piano vs the classical guitar is that (IMO) the level of, say, Grade 8 on the guitar is significantly "easier" than the equivalent on the piano. (For example, years ago I used to play quite a few of the Grade 8 pieces on the guitar, whereas Grade 8 on the piano seemed much, much more difficult.)
[Edit] There was a point that I was trying to make, though I got a bit side tracked: keyboards/digital pianos can be a real boon, especially as far as the neighbours are concerned, but the quality and touch of their keyboard actions varies wildly. If the object is to get somewhere near the touch of a real piano - some are reasonable, a few might be very good, but many are poor. This might not matter to you, or it might prove a very significant obstacle to both technical and musical progress.
A newcomer to the piano would probably want something cheap to try out on (not the Kawaii digital piano I eventually bought, which cost £2k) but bear in mind that the cheapish keyboard/digital piano you start off on could limit your progress and your enjoyment.
Last edited by JohnB on Wed Dec 13, 2017 8:50 pm, edited 1 time in total.
Hermanos Conde 1968, Stephen Frith 2007 "Guijoso"