I'd do it regularly but so much of the time I spent in the centers was just waiting around doing nothing. Even though the process only took an hour or so, you had to wait 2-3 just to sit down in the chair. $80 for 4 hours is still worth it but only just barely since you can only do it twice a week.
It kinda bills itself as a "Quick in and out deal to get some spending money" but it's closer to an entire half-day of waiting/donating and then feeling kinda tired for the rest of it.
The last thing this universe needs is more anime.