This is fantastic feedback! We can invest significantly in user interface and the user experience, maybe even having "Basic" and "Advanced" toggle to present a unique UI. This will make it easier - but the app will also be extensive in functionality - so it will take time to master. Ideally the app can "be there when you need it", meaning it doesn't get in your way, but its easy to figure out how you do a thing when you need to.I too do all my mapping on my PC then switch over to my tablet for navigation. I started playing with this stuff back in the middle 90s and have searched for a system that works great. What I found was either compromise or one that worked great but the company stopped supporting it. Now I'm back to compromise.
Every time something new comes out, I see if I can load it in my PC to create maps or if it's compatible with the maps I create with what I have. If it is, I buy a single year premium subscription and give it a good try out. As it sits now I have two subscriptions I cant use because they don't fit what "I" need. I'm back to Gaia.
Trying to make the best GPS system out there is a great idea and I applaud you for it. If its too "feature rich" it will probably confuse people.
Things I would change.
1. Creating folders is easy, importing to a folder is not. If I import a route with waypoints and a track, I need to go to diffrent screens to get everything into one folder. It would be nice to be able to "select all" by dragging a square over an area and copying, dragging or just importing to a folder.
1a. Data organization. I was going to add this into the above comment but decided I needed to separate them. Ugh... I cant seem to put this into words. I think the data can be organized better. It works but finding something I don't know the name of and not in a folder can be tricky. I'll just leave it like that.
2. Names. This one is difficult. When zooming in the name of the road/route/waypoint, the lettering scales down. This can make it impossible to read. If I zoom in and out I can see it before it shrinks. On the other hand, other GPS software I've used, the name scales up when you zoom in and takes too much room.
3. Big learning curve. This one I don't mind. Most of the issues I had in the beginning were due to my lack of understanding. The main one being the subscription. The free version has some features but if someone sent me data from their paid premium, some of the data didn't mesh well. Most of the issues I've seen that people have, is pretty much lack of understanding. With the premium version you can do more. This is great for me but most people need simple.
As I said, all of these are a compromise. What works for me may not work for someone else. I wish I could remember the system I used in the early 2000's. It was android only and to date was the best overall gps/mapping software I have ever seen. Too bad they stopped supporting it and they never supported I-pad.