It can be over a phone call, video chat, or i can drive up there.

I have a video of the property on Zillow.

In the video I show how I end up replacing most of the suggested comps with comps pulled from Redfin and the justification behind it, but the punchline is that it helps you come up with an accurate number doing what @Hem Kumar said: "...make adjustments for unique features and amenities..."

However, I think a great idea for some BiggerPockets videos would be showing an actual deal happening in progress from Josh, Brandon or others.

I use Mozenda and learned from Justin McClellan from hi youtube videos.

If your not thinking the rental route, I have to say I personally received an excellent education buying and flipping my first property, did 80% of the work myself, watching youtube videos to learn how to tile along the way, etc.

I watched a video where the person doing a rental analysis said that it was only important for commercial properties.

here is a short video of the stairway.

I have no experience in real estate investing. when ever I have free time I'm always watching videos on YouTube or listening to different podcast on multifamily investing. 

I've read 4 real estate books, watched the BP free course videos, listened daily to the BP podcast, etc.