HDRI scaling issues? So, I get it that I'm probably missing something here, but this is an incredibly frustrating issue with HDRI's that I...well, I can't find how to fix.

I tried mapping, changing the scale of the HDRI and...I'm just stuck.  The image above was created from a tutorial on HDRI's, downloaded the sample image and it looks nothing (obviously) like the tutorial.

People make it look easy.  Just plug the HDRI into the environment node and it'll work, they said...

Here's the node setup of the above mentioned cube.



I know this is some setting I'm over looking because this was created with the default scene and literally just adding the HDRI.  It happens no matter what HDRI I use and no matter what scene.

Small addition:  the camera is in perspective mode, not ortho.

Further, I can't add the HDRI due to site limitations, but it's supposed to be an interior room.  Hard to tell because it's so stretched out...but yeah...any help would be appreciated.
Your HDRI is 2048×1024 only. It could be enough for lighting or reflections but not for a visible environement image (or for a very low res render).
You'll find links to HDRIs (and other ressources) here.