It's definitely a fair bit of effort and responsibility to keep this many fish in this size of tank, so it pretty much needs to be a labor of love. Cichlid tanks like the one in the photo might be a little less work / stress compared to a typical saltwater tank of similar size, but they can still be a lot of work.

I wouldn't want to take on the responsibility of upkeep on this tank, but I am certain if I had something like this in a nice spot where I could stop and lounge for a bit, watching the fish do their thing, in that moment it would be quite calming.

Same principle with captive birds as pets. The sounds of a happy, healthy aviary can be so soothing (with the right birds of course). However, birds are a lot of work. And the cost of caring for them, I mean, just wait until you see the bill.