Hi Daniel,
Years back, mostly different folk inhabited this forum. The forum seemed to focus more on responsible keeping and conservation. Now, it seems mostly about pics.
At that time this commonly posed question about Indigo stink would be answered like this: Yes, they stink and they poop frequently under the best conditions for the snake. Cold blooded feed stinks way more than rats, but that is for the bar set by the indigo, which is pretty extreme compared to pines or pythons.
Now the forum's content seems to have gone down quite a lot compared to the old days. I will tell you that I was offered a breeding pair of Indigos from an acquaintance(bred lots of reptiles) that told me "No one told me they stink so bad, I just want to get rid of them." I later did get into indigos, but only after seeing firsthand what it was like. Then, I was able to weigh out the pros and cons. I can't do this for you.
Also, it used to be heard that Indigos can be kind of finicky.
Sometimes, within the last year or two I have seen posted here that "Indigos make great beginner snakes" and no one really contested him.
You can keep the animal healthy and clean if you are willing to put in the work. Its a lot of work compared to other kinds of snakes. Its a labor of love.
I would suggest visiting an indigo from a guy who isn't trying to sell you one.
If you can accept the charge then do it, if not, save yourself and the snake a mutually unrewarding relationship.
Note* I am not selling any indigos! I am not trying to build a market. My response differs accordingly!
Good Luck to you.
Matt