Student Project - "VR Escape Room"

I am currently running what may be the last package of my prototype project. for the last few weeks, I have just been on cleanup and testing, and fixing up any issues along the way.

One point of note is controls: I am interested in feedback on my control scheme, at the moment, I have settled with

Touchpad: Teleportation controls.
Side Buttons: This is my main area of concern at the moment, I’m using them for grabbing right now, in my short demo it does not appear to be an issue, however testing has shown that players who are not familiar with the HTC Vive controller seem to have problems with this, this may also be an issue if the game is expanded upon and takes longer to complete, as the recent SUPERHOT VR uses this control scheme and I have noticed extended play can cause hand cramps.
Trigger: Shoot - Self explanatory, and nobody has had issues with this yet in focus testing.