I am curious about this game but the problem I have with a lot of adventure games anymore is the endings are always "Well were done so slap something on there to get it over with" or they pull the be continued card.

So please don't give any details but is the ending actually satisfying? It doesn't have to be a big huge production, but just something that is fitting.

Im just tired of games and movies anymore that I enjoy but the endings leave a bad taste in my mouth and ruin the entire experience leading up to it.

The endings concludes the main strory - you know who the villain is, what happened with the protagonist and another character important for the story, the goal you are pursuing through the game is reached.
Is this satisfying answer?

What Novotnus forget to emntion:
The Cat Lady has multiple endings, depending on certain conditions you do during your playthrough. For example, when the nurse asks you about what she was talking about a few days ago. Do the conversation right and you have a flag for the best ending.
I don't know if the ending's affected depending on how many requirements you fail for the best, but just say there are at least three endings and most likley a few more.

So, earn your happy ending! Enjoy the game.

I counted to five endings (different fates of two important characters).

Nope.

I don't know what more I can tell without giving away too much...

Okay, how about this?
Depending on your actions, Susan will redeem herself and receive the reward she always wanted to have.
If you do slightly wrong, Susan will at least redeem herself.
If you fail... well... I don't know what happens.

Either way, the ending concludes the story.. No cliffhanger, no to be continued. Just the whole story, as a whole.
And everything that happens in the story is there, so Susan will find her way to the end of the game.

If the developers will make a new game, then Susan will most likley return for a short Cameo. Like the guy from Downfall. But her story is over.