Too slow for my taste - I much prefer the unlimited time controls - both for speed and rewind/undo. I would really enjoy experimenting with constructing the graphs of this nature if only game wasn't this sloooow. Also, there's no way to sell a poorly placed tower - the only way to fix a mistake is to restart from scratch. Also, I couldn't figure out how to make forks in the road - I was only allowed to build new roads starting from the nexus. Maybe this can be fixed with more detailed instructions on the game page.
Viewing post in Roads to Power jam comments
Every node has road limit. This limit is displayed at the left UI frame when you select any node. Empty node has limit 2, so that is why you can only build “straight” roads. That was an idea if you want fast getting to some rich deposit, and you don’t want to spend gold building intermediate buildings. Anyway, that should be explained better but the game :)
And thank you for the feedback!