Maybe your Aisin problems are specific to that particular model? I like Aisin for my Honda. I like Aisin for my Volvos. Just finished timing belt on the ‘04 Volvo S80 over the weekend. The original pump (made in 2003) was branded Aisin and Volvo, while the new one was branded Aisin, but had the Volvo name ground off. (See pic)
The original pump had 226K miles on it and it was operating great (smooth, quiet, no leaks). Pretty sure the pump could have gone another 100K, but the new Aisin Timing Belt Kit came with a new Aisin WP, INA idler and INA tensioner, and Gates belt. Looking forward to another 200K+ miles.