One of the reasons I bought the Solton X1 was for the song text display. While it worked pretty well, it proved to be not practical for me for several reasons.
I liked to have information available on the screen other than the lyrics. The lyrics had to be "married" to a style, or song, or setup, and it quickly became very complicated to store and recall everything. The X1 format called for standard text file, which was o.k., but most of the lyrics I had were in a word processor, and I had to convert everything to standard text file, then set up a memory for each song, or go to the hard drive and call up just the lyrics. And, you had to scroll the lyrics either by hand or footswitch. The X1 kept both my feet and both hands busy as it was because the fill and variation buttons were on the wrong side (at least for me).
I quickly decided the notebook computer was a better way to go. Then if you change keyboards (as most of you know I am very prone to do) you still have the "fake book". I'm so glad I didn't invest the countless hours that would have been needed to set up the X1, because now I'm back to Yamaha.
I am probably still a few months away from having an operation I can live with.
In addition to the standard fake books, I have the words and chord changes to every song I have ever learned. And I started doing this in 1962. A lot of them are still typewritten, as I didn't get a computer until 1990. I'm slowly getting them converted to word processor. Unfortunately many of them are not in good enough condition to scan with much success.
Don