For some reason your new post still only shows 1080p HD, not 2K. Hmmm...
Yeah, I've notice the 4K stopped working at some point. Not sure what's up with that. But 2K still looks good.
In my opinion it's actually a hair TOO clean and sharp. That footage was entirely shot with a Canon 1014 XL-S usually stopped down to around 8 or 11 and rarely ever zoomed past half way. It was also Vision3 50D. All those make for very sharp Super 8 footage. But, the biggest player here is the fantastic scan by Spectra Film and Video on their Spirit converted for Super 8. They do a fantastic job. However, it's both a bonus AND a draw back that they have on-the-fly sharpening and grain reduction. So, it looks "good". But, if you really get nit-picky it almost looks took and and a bit unnatural, especially for Super 8. Some parts almost look too clean and video-like. Again, it's just preference I guess.
I've now started doing my scanning with Gamma Ray Digital on their LaserGraphics Scan Station. I will soon be uploading a better version to both Vimeo and YouTube, but you get a pretty good idea from this Vimeo post:
I feel the scan is more true to the format. It's true that it's not quite as sharp and the grain a bit more pronounced, but it is more pleasing and accurate for Super 8, in my eyes, especially the reversal that I have had scanned at Gamma Ray. Their scans of E100D, Velvia 50D and Provia 100F look exactly like the projected image with a bit more shadow and highlight detail. It's a fantastic system.
Again, Spectra does a great job and their colorists are fantastic. So, I'm not knocking them at all as a great source for Super 8 scanning. Gamma Ray Digital has the draw-back of negative scans being "flat" and not fully scene-to-scene graded like Spectra and Pro8mm. But, it's worth the extra grading time and effort for me personally.
Lastly, Pro8mm does a great job too. I love the look for their Millennium 2K scanner. It's CRT (tube) flying-spot based. So, it has a very different look that is quite pleasing. It is a hair softer that the CCD area and line-sensor scanners out there. But, it's a nice look that, again, is pleasing to watch.
That's my soap box rant for now.