My biggest problem with Theia is that the menu structure and appearance/feel is very different from the actual VSCode editor I am used to on the desktop. This was not the problem with Codercom. It reduces friction to move from the desktop to the cloud. If this could be solved, I would certainly prefer theia more. At the moment, I just can't customize it enough to get to my liking: https://news.ycombinator.com/item?id=19396894
Theia is about to complete the VS Code extension support. At that point it will be the better option as it is architected to run in remote scenarios from the ground up.