Gift of Hedone: Treasure Chests - How will I find them?

Hello you lovely deviants,

As always I wanted to get your input and feedback on my plan for certain mechanics and implementation.

Originally, I was planning to keep this pretty basic, set locations and spots or treasure chests. But the more I thought about it, that may limit the amount of treasure chests you can find or get, as I dont know how big each map will be.

So this is where I want your feedback on what you would prefer:

Option 1 - All Treasure chests have a random spawn chance whilst you are exploring. The difference would be that legendary or epic chests would have a set limit to how many can spawn each region - i.e there may only be 3 epic, and 3 legendary chests that can spawn, so once you have opened those chests, you would only spawn in common or rare chests which I am planning to just make material rewards.

Option 2 - Common, Rare, and Epic Chests are Random - but Legendary chests would have set locations. However if I did this, id probably make the legendary chests have some sort of obstacle or condition to open - rather than simply finding them.

Which do you prefer?

Or if you have an alternative suggestion, let me know :)