Since the moment I tried Odin, it has been an absolutely essential part of my coding workflow. If you are solo: You can make the inspector do almost anything you can think of, to the point of dang near making minigames in the inspector itself. It's that powerful. If you're part of a Team: You can make inspectors that are absolutely BULLETPROOF, with handy tooltips, easy settings buttons, re-orderable lists and arrays, Hiding unneeded references/variables based on bools, and much MUCH more, so your artists and level designers can unleash their creativity without you getting upset at them because they forgot to put in a certain reference or enabled the wrong variable :) It's worth every cent, and that's before getting into the new visual designer in 4.0 that made it even EASIER to make those custom inspectors. 10/5 would buy again.

it changed all my unity capabilities

Litterally this is borderline the unity editor customization equivalent of the step between Dos and Windows for operating systems.

Odin is one of the best investiments you can make on your project.

Odin has been so easy to use and people on the Discord are very helpful. With the latest release the Visual Designer tool makes things sooo much easier.

新功能很好用，不用等代码编译马上就能看到效果

I really regret buying it. I bought you to save time, not to read the copyright notice

Unity's greatest strength is the customizable UI, but actually writing custom inspectors from scratch is a major challenge and a considerable investment. The Odin suite lets you build designer-friendly tools in a quick, easy and – most importantly – maintainable manner. You can learn it in an afternoon and is useful at pretty much every stage in a project. While you're prototyping and figuring things out, you can easily build yourself debug tools that save you from constantly starting and stopping the game to perform tests, simplifies data structures by serializing collections like Dictionaries, taking a lot of friction out of the process. While in production, you can respond extremely quickly and efficiently to requests from art and design, or even just train them to make their own tools. It's that simple, it's that powerful. Odin is the first (and usually only) asset I import when starting a new project, and it's literally the only one I recommend without any qualifications to all other developers. Save yourself a bunch of trouble, make your team happier and more productive, enjoy Unity the way it was intended to be used without jumping through all the burning hoops presented by the editor scripting API.

if you want to create good looking inspector stuff, this is the easiest way

If you let publishers charge you more money if your game is somewhat successful (remember you already paid for the asset), what's stopping all the other asset publishers from doing the same? Suddenly you not only owe taxes, unity license, possibly the steam cut etc, but have to now pay (per year, per seat) all the publishers of the assets that you used too. I bought this asset in 2023 (didn't realise about the 200k cap before, which is my fault) but won't ever use it purely out of principle.