When would a 3D VLE, Virtual Learning Environment, have an advantage over a face-to-face or 2D learning environment?

I don't have an answer, and after aimlessly flying about in Second Life just now for 45 minutes of my real life, my answer to the question is 'not yet'.

Here's how I started my 45-60 minute journey: 


That's fine. I've seen that page before. Now, I must enter into this world of Second Life.
It's a groovy place to fly about it but at this point I'm not getting the point of why this is a good learning environment. And, let me say that I'm pretty open minded....way more than most people my age.

I go in and navigate/teleport to a familiar spot: Learn It Town.  I recognize this place, as Shelwyn, my instructor, has taken me here, via teleport, several time in the past 3 weeks. This is the first time I've ventured in on my own.

I like this house so somehow I've found myself in the bedroom.  I fooled around with my clothing and hair for a few moments, and ended up bald at one point.  The controls and settings on Second Life aren't intuitive for me....it requires more attention the the 'fine print' of the windows and drop-down menus than I'm in the mood for this evening.

Next, I go over to EduNation, which is a public place on Second Life that is well known to English learners. I have no idea what this plaza/space is supposed to be...there are many images on the wall here, like murals and I suspect that each one of them will transport you into another space on Second Life. 

After visiting this place for a few moments, I venture over into something called Virtlantis, which I found by typing its name into the search bar on the left side of my screen.

I'm still fiddling around with the camera controls to see if I can rotate around enough to get a look at the place.  The option of flying is always available but for some reason it's not that easy at this point. I think I'm in some kind of flying disc now and I can't remember what Shelwyn told me about them.

At this point, I've navigated my avatar, Brunellista, into some kind of outdoor space which I believe is still in Virtlantis.

My conclusions at this point are that entering Second Life on your own as an investigative experience is fine, but also irritating, time-wasting and one of those moments where you question what the hell computers are supposed to accomplish. I'm not in the mood this evening for this kind of exploratory view and suppose that many people feel this way after they enter into this 3D world unsupervised.