Hello Séverine and welcome to the site, For my part, I now have a digital (Roland fr.3 sb). It's totally different from the acoustic one, if you are a purist, a wooden accordion remains an accordion, at the beginning I was disappointed by my choice.
Now, a digital accordion allows you to obtain a multitude of sounds (coupled with an expander, you can play all instruments) It also allows to have a much more complete accompaniment (drums, orchestral sounds etc...) and allows to leave the "musette" repertoire often asked to accordionists. Playing Brassens on the guitar, Apache on the electric guitar or Petite fleur on the clarinet, all accompanied by an orchestra, virtual chord, does not make the same thing as the acoustic accordion alone, not to mention the recent music that sometimes have difficulty to pass with a traditional.
It is also a little more complicated when you move, there is more material, it is not enough to open the case and to put the apparatus, it is necessary to connect the material and to make the adjustments but in my opinion it is worth it.It is also worthwhile to look a little at the terms of the digital music, there is a lot of thing to discover (maybe a little too much for my taste, but that commits only me...). It seems to me that your approach is the right one: find an accordionist who can make you try a digital one (or simply go to a store) before taking your decision. Good luck in your research and keep us informed of your choice. Best regards Daniel.