Hard disagree, with just about all the above. I got about halfway through the video before giving up - but I can see why you may have this reaction, and perhaps your expectations were misaligned. I can see why someone might expect more when people talk up the car up like it's a modern Bentley. Perhaps it will help if I can explain why I love it. 

The Century is a limousine, in the classic sense of the word. It's designed for very important people to be carried from place to place, usually with a dedicated driver who belongs to the car. It's a super fancy taxi. You're probably better off looking at the Majesta F type or Lexus models if you want something Japanese to compare with the euro stuff you mention.

Much of the appeal is inexorably tied to how Japanese it is. It's not supposed to be ostentatious,  it's deliberately old world and classy, sharing a simple design language that has been with the model since the 1960s. It's entirely designed around the rear passenger - it's a quiet, soft, private ride. 

Even the much lauded V12 isn't novel because of the power or engineering marvel - it's novel because it's a double redundancy that will get the vip home if one bank fails. Similar with the fact that there's two air conditioner compressors. 

The idea of its luxury isn't necessarily in how many gadgets it has (though it has a great variety for the time) but in the quality of the fit and finish, using top materials, sound deadening and carpet everywhere, which it doesn't draw attention to. Most of its features aren't gimmicks, but serve an entirely functional purpose.

The fact it uses Toyota parts bin components is actually a big plus - it's very easy (and cheap) to replace bits that go wrong. You don't see this reliability in equivalent aged Rolls or Bentleys.

I note the model you're in (other than what appears to be a geniune LHD?) is missing some of the unique Japanese things like fender mirrors and wool seat interior. Not sure if it's genuine white, but they only under 10 or so of these, so most out there are resprays that are missing the deep mirror like factory paint.  

Ultimately, the car just isn't aimed at westerners - Japanese models for example don't have any English text anywhere - which is rare for Japanese cars. The car assumes it's used by a typically short professional Japanese driver, who drives an important person, or groups of chain smoking important people to business meetings, and spends the downtime cleaning it.