Yep, that is the video, I watched the entire video and it is quite amazing how even a 5 to 6 foot longsword can be swung with effective speed and momentum.
The swords seem to work fine when matched together, however I believe Greg Mele stated that the Alchem blades are a bit wobbly (I'm not sure what type of blades he was referring to) and are exceptional but not the best out there.
Apart from this, I think Alchem is another good resource to get exceptional steel trainers.