UPDATE: Now the TAS is additionally coming in handy for me as a film "washing machine", too
I recently had an issue with my hot water heater, so I had to wash my film the 'old-fashioned' way —which is just as efficient and a LOT more ecological— by filling the tank with clean water/agitating/dumping/repeating the cycle (the number of cycles and agitations-per-cycle depends on what you read...Generally anywhere from three to five cycles). Normally this is easy enough to do by hand, but in this case I especially needed the time to "make" wash water at the right temperature*. As a result, I found that I could systematically work quicker, too.
After the continuous fixing agitation is completed by the TAS, I give my film two quick rinses (of 5, then 10 agitations) by hand, then I use the machine for the tedious 2 continuous minutes of agitation in HCA —which, without a hot water heater, gave me the opportunity to mix more water for the final wash, "at temperature" (*thanks to help from the electric tea kettle). The whole film washing process got reduced to a total time of about 7 or 8 minutes, with an even greater economy of water than of time.
Sure, I suppose you could argued that the ecological benefits of using less water are offset by using electricity, but my unqualified guess would be: nawww. I think using the TAS clearly wins on this one. But, yes: doing it all by hand would be even MORE ecological! Again, when I have just a few rolls, this is fine. For 8 or more rolls (or SHEETS) at a time ..nowadays, it's the TAS or Jobo.