I can vouch for said Mod54's. I already had a Patterson System 4 tank (so I could develop two rolls of 120 in one shot), When I got the Shen Hao HZX45-IIA, I was in need of a way to develop the resulting 4x5 negs. The Mod54 fits the bill perfectly. So adding it to my arsenal was an easy decision. Great concept, great design, great product all the way around.
Glad to see there's still businesses that understand those of us who like to fool around in the dark.