Hello Bob and welcome to the world of SimScale! Thrilled to have you on board 
Let’s try to answer your points step-by-step.
We only have one office (our headquarter) which is located in Munich. We have actually something in planning that would allow users to come to our lovely office in a small group and get some hands-on simulation experience.
What commands are you talking about? I guess you mean the general understanding of the GUI in our case. That is absolutely no problem at all as we are offering tons of learning material for our users and you should get used to our platform pretty fast
That is of course possible. We have a collaboration with OnShape where you can create your CAD models directly inside the browser without the tedious task of installing software wasting space on your machine. Fortunately we have a plugin with which you can directly upload your created geometry into your workspace and create your mesh, the simulation as well as neat post-processing pictures.
Hope that I could clear things up a bit. If you have any questions do not hesitate to ask me. You can also contact me privately here inside the forum via private message if you like.
Thanks for your interest in SimScale and enjoy your weekend!
Jousef