Just to give you some of my background… my first computer “user interface” was an IBM punch card machine in the 70’s. 
I’ve gone through all the CPM, MS-Dos, Atari, Amstrad, Commodore/ Amiga, umpteen PC’s from Windoze 1.0… to present day. I’m pretty good at just jumping in with any new program and can figure out the basics pretty quick. That is when a program follows standard design principles. I will admit that when I first opened Valentina about 3 years ago, I was like “now what?”. Once I watched some videos I got past the now what… then came the “what’s a passmark?”… and so on. That’s when I started to work on my own fork to correct many of the non standard gui and terminology issues. Recently I decided to bring some of what I did in my fork to Seamly2D. So yes… I agree the ui needs work. Hopefully we’re slowly get somewhere.
You may like read some of recent discussion we had about “Crafting the First Mile”… which led into some ideas to implement to make the app easier to start using for new users.