The game's debugging features consist of a step forward button, a step back button, and fast forwarding (up to about 4x). However, these are not enough. In many levels you could find yourself noticing your program is stuck in a loop, then having to repeatedly click "Step back" dozens of times just to find the key moment, which is even worse if you were fully fast forwarding. In later levels, where solutions start taking some more time, it might take minutes to find the key moment in your program that failed to work, just to wait more to figure out if the change you made was enough to get it to work.
The game does not show you every part of your program at once. At later stages, even about 20 instructions will require scrolling to reach parts of your program. Even with about 30, it quickly becomes tedious to move around your instructions as you will either have to wait for scrolling or spam the scroll wheel. Many of your solutions will also be using one of the 'blue' commands, which has two arrows, so you cannot just delete the key instruction and add a copy to where you want it to go.
Related to the game's story not doing much, the gameplay also does not integrate itself with any cool story events that may happen, as they don't happen. You don't lose abilities, nothing gets 'screwed up', and the game doesn't last long enough to be able to explore the game's concept in depth. What this means is that the levels are more by-the-book as if they were programming puzzles in a book, and if you've played many games of this similar genre you've already seen about 80% of the puzzles in the game, in which most of the remaining ones are early tutorial puzzles.
The game's story does not progress very far. With a premise as interesting as tying into the "machines taking over jobs and humans", you'd expect gameplay and levels as unique. But the game plays as stock as a programming game can get, even just on the story standpoint. Many details are shown around the game, but the game doesn't go deep for anything involving it.
This game contains about 5 hours of content for many players, and is composed of 3 "chapters" of about 11 levels each. Most of that is taken up by tutorials. Each chapter 'dives in' a little bit into a topic. But if you're looking to learn programming it'll likely be too short. It also has many mini levels where it shows a little topic, but those are not explored that much (one of the worst moments with it is when it asks you to "use a friendly search box" as a serious recommendation).
(Note: This game actually is appearing in a Humble Bundle for $1 by the time of writing.)
One pro about games like this are the fact that you can optimize your solutions. But the marked "Best" solution is almost always inaccurate. Some levels are tens of blocks and hundreds of steps away. You'll have to go to other places to challenge yourself properly.
Very basic and abstract in design and gameplay the user uses limited resources in order to create the most effective routes for a transportation system.
Minimalist design and relaxing music makes this a very different experience from the bustle of some others. A minimal zen like game that allows one to relax while playing. While gameplay may get hectic there are modes of play that do not allow for loosing meaning that you can relax and just play without worry.