Avoid. Worked 4 years ago.

Importing this in 2022 causes all objects in hierarchy to disappear. Fortunately, deleting the asset makes it visible again.

asset made my hierarchy to be empty and in error.

Amazing Hierarchy asset, but one major bug prevents it from being used anymore: Everytime you click play or change anything else, the whole hierarchy shifts to the left and hides all the parent->children toggles. So you can't actually go and see any children objects. The only solution is to open a new Hierarchy tab and close the other one, until you hit play and it just goes back to the same issue. Hasn't been updated in a while so I'm assuming it's no longer active and unsupported.

I haven't used this much at this point, but it's pretty nice so far. There are tons of settings in the preferences, which is awesome. Everything can be toggled, or colors changed, or whatever you want. One pretty large issue, at least as of right now, is that customizing any object in the hierarchy causes it to slide to the left, and offsets the open/close arrow's image, so clicking the actual image doesn't do anything and you have to kind of hunt for where it actually is to the right. Another issue that was immediately obvious was that the child object count number (which is toggleable) is always just in the middle of the text of object's name. That being said, there are a ton of other features that seem to work well so far. I'd really like to give it a higher rating, but I got it to color/highlight objects in the hierarchy and it's really annoying to have to click where the open/close arrow isn't, so I'm just not using that feature right now.

HP has worked fine for me since 2018.3 so it's troubling that others are having problems. Maybe I'm doing something wrong that's causing it to function properly? ;-) Jokes aside, I really like HP and it's become a regular addition to every new project. The only thing I wish for is that sticky notes in the scene view could remain visible without the object having to be selected. I think it would be a really helpful way to keep track of important objects from getting lost in a very cluttered and complex scene.

i get a lot of troubles with 2018.3.6f1. i hope the Bugs will be fixed soon:)

Looks promising at the moment, but still throws some exceptions, which I'll report to the author. Seems to be fast as hell, especially compared with QHierarchy. This was my reason to move on top here. The price is a steal, would recommend to raise it, really.

What I was searching for was to colorize the labels in the scene view, because I have too much controllers and managers. I did not search for more features in this asset, but it has a lot of more. The only one thing that I had to do is to customize the view, to remove some visual features. The transparent background for child game objects and the list of components brings for me just chaos in the view. Even the tool bar can be disabled, then you can find the settings under the preferences. It also has intelligent tag/layer labeling feature. You can also assign your own icons to your scene elements, therefore white colored icons are useful, because they can be colored too. This asset is yet for me 5* +++.

EDIT: Error is fixed, changing rating but I still have not had a chance to use it...will change it after I get to using it a bit more! These are the errors I am getting (only a few there are different ones) Once I delete teh asset my project is back to working fine. Add this again and these errors come back. (Will change review rating once corrected and can properly test!) Unity 2018.1.6f1 TreeViewInjectGUI.BeginRowGUI () (at <883cfe84cdc24633b44f9f59080feeef>:0) HierarchyPlus.TreeViewInject.BeginRowGUI () (at Assets/HierarchyPlus/Editor/TreeViewInject.cs:176) TreeViewInjectGUI.BeginRowGUI () (at <883cfe84cdc24633b44f9f59080feeef>:0) HierarchyPlus.TreeViewInject.BeginRowGUI () (at Assets/HierarchyPlus/Editor/TreeViewInject.cs:176) TreeViewInjectGUI.BeginRowGUI () (at <883cfe84cdc24633b44f9f59080feeef>:0) HierarchyPlus.TreeViewInject.BeginRowGUI () (at Assets/HierarchyPlus/<message truncated> Allocation of 78 bytes at 0000000005BA1580 GUI Error: You are pushing more GUIClips than you are popping. Make sure they are balanced) UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr) Assertion failed: TLS Allocator ALLOC_TEMP_THREAD, underlying allocator ALLOC_TEMP_THREAD has unfreed allocations, size 7020