I tried making some homebrew in D&D Beyond yesterday for the first time.
Already had all the info about the subclass, only had to add everything into the system.
It took me so long to figure out everything, and I think it was way harder that it should have been.

Now I know, implementing the ability to create custom creations is very complex, and this feature is a constant work in progress.
But I wanted to provide some notes on my experience.

I'm not here looking to get help (although if you have it, it's more than welcome)
Maybe I did things wrong or what I wish for is already there...

My first issue was, "Testing The Homebrew"

I had a character sheet open and every time I made an update I had to:
"Save" the homebrew, Go back to the character sheet, Change the subclass, pick every feature again, and pray it updated the info.
It was very hard to tell if the changes I made were updated, or I did things wrong.
Turns out it was a mix between the two, but it was very hard for me to tell.
At one point, I was going back to every branch of the homebrew and pressing the "Save" button on every page. Just to be sure.

It would be awesome to have some live preview of what is being changed on a dummy character sheet. That would solve other issues I had.

"Not knowing what is what"

Creating a homebrew was a guessing game. Although some things were intuitive, most of the time I had to go surf around trying to find out if there was a way to do what i had in mind.
There is a little "?" next to each option, that if you hover over it gives a little explanation. But as someone new, it didn't help that much.
Most of the time I found myself googling every aspect I was unsure about, and most of the time the answer was a comment in this forum from 5 years ago.
There is no page with all the detailed info on what is what. Like a wiki. And if there is, I wasn't able to find it.
The best I could do was create a homebrew with the info

It would be great if Homebewers had easy access to an example homebrew from existing items, spells, subclasses and so on.
I know we can do this (create a new homebrew with a template), but why not make it easy?
Go to a page and select the game element you want to check out.
It displays the homebrew info of how it was made and next to it how it looks on the character sheet.

"Does it need to be this complex?"

I understand why it is, but it's nothing more than an inconvenience for the user.

It would be lovely to manually edit every aspect of the character sheet like in other VTT (or a pen and paper sheet).
Like adding a feature or an item directly to the character sheet.
That way, if your dm asks a player to create the character sheet on D&D beyond because it's better for him, the player doesn't have to spend a day figuring out the system.
(I'm not bitter, I swear)
But my hopes for this are low.

Here I'm hoping that now that One D&D is a thing, the homebrew system is going to be reworked.

Hope this thread ages poorly, and the homebrew system is a pleasure to use in the future.
Would be great to hear other opinions or feedback from people that might have more experience.

You can likely find some useful information in the FAQ: (https://www.dndbeyond.com/forums/dungeons-dragons-discussion/homebrew-house-rules/131411-a-homebrewers-how-to-faq).

Thanks! I did check it out. It was helpful!

But as things are right now, can't picture someone making a homebrew without hours of trial and error, skulking around trying to find what they are looking for.
Every bit of info helps, but there is no "one" place to go with everything easy to visualize.

Had to learn HTML (or at least figure out how to do what I wanted with it)
Too much of a hustle.