Am not impressed with the Transrapid-derivative they listed first. In Germany it failed for a reason. In Shanghai it's operating at a loss, has impractical cabin layout for the purpose (Airport shuttle, luggage/baggage) and hasn't been expanded as initially planned. Why is that?

Let's see how the Japanese do with their https://en.wikipedia.org/wiki/SCMaglev on the https://en.wikipedia.org/wiki/Ch%C5%AB%C5%8D_Shinkansen in a few years.

It's not awful if you'd need to build new rail links into the city centre anyway (e.g., due to capacity) and you have little onward long-distance travel. Tokyo–Osaka may well be a viable route for that, but there certainly aren't many.

(In the Shanghai case it's practically laughable, because it's such a short journey the top speed is practically irrelevant: it spends half its time accelerating/braking)