I saw the image below, went to DriveThru and saw all the gorgeous layout - I have not clicked 'buy' on anything so quickly recently. Inside I found the purest distillation of a planar handbook I have encountered in quite some time. I will probably make myself a *colour* hardcopy of this, it is that good.
Launch graphic from DeathbyBadger
The graphic design work throughout is magnificent, vivid and exciting in a way I have not seen since... *thinks* *searches shelves* ... maybe Planes of Conflict? Maybe Planescape Monstrous Compendium Appendix II? Certainly it looks like a lot of the best of the post-Pathfinder era has been combined with an OSR 'show me the gameable content' attitude to give something thats like an atrophine injector of pure planar energy. I have always had a soft spot for the Infinite Staircase, it has long been one of my favourite planar pathways and this is a monument to the best it can be.



