One thing to be aware of is that this charger does not have a "lock lockout" feature. If you have packs that tend to false peak, you will be sitting there pressing the start button repeatedly.
I bought one, used it for one pack, couldn't find the "long lockout" setting in the manual and called Futaba. When they told me it didn't have that feature, I sold the charger instantly.
This may not be as much of an issue with the current high-end NiMH packs, but what I needed it for was spec packs that false peaked. So I dumped it.