Overall I can recommend this mod as a One-Playthrough game for those that have played the Portal series before and are hungry for more puzzles with a few new mechanics to mix things up.

The level design was very good. In particular I liked the use of the dynamic lights on things like the light bridges and the effect of dynamic shadows cast from light sources behind moving objects was enjoyable to look at since its such a rare effect in Source Content in my experience.

The puzzles were not too hard but also not too easy, overall an enjoyable pace. The use of autosaves at key moments in the puzzle progression was very much appreciated. I particularly liked the idea of having to fizzle a cube that you placed earlier in order to progress.

The story/writing was OK, same with the voice acting and soundtrack.

Overall I can recommend this mod as a One-Playthrough game for those that have played the Portal series before and are hungry for more puzzles with a few new mechanics to mix things up. The level design was very good. In particular I liked the use of the dynamic lights on things like the light bridges and the effect of dynamic shadows cast from light sources behind moving objects was enjoyable to look at since its such a rare effect in Source Content in my experience. The puzzles were not too hard but also not too easy, overall an enjoyable pace. The use of autosaves at key moments in the puzzle progression was very much appreciated. I particularly liked the idea of having to fizzle a cube that you placed earlier in order to progress. The story/writing was OK, same with the voice acting and soundtrack.