I tied it up the other day and it holds STRONG! I posted a good size largemouth that I caught and it held solid. I have a 9-10' leader so that even if I have to change lures a bunch, I will have plenty of leader.

 

I will be happy to let everyone know if it ever fails, but it's actually pretty amazing.

Looking at the video of the GT knot I don't see how it's thinner than an alberto, with both knots it's basically one line over another, I'd think the total thickness is the same or very close to it.  It may be in fact a very strong knot and quite useful for some of the larger pelagic species.  The alberto ties in seconds, and the GT looks way more time consuming than I care to deal with.  I'm not so sure how powerful the bass are that other people are catching, but the alberto seems to hold fine for the bass I catch and my snook, tarpon as well.