Only problem with the Chargemaster is if it goes wrong out of warranty, RCBS offer no support for it, no spares at all, it's a bought in disposable item for them.
I use a Hornady LnL dispenser, picked it up cheap in the US a few years ago, accurate to -0 +.1gr even with extruded stick powders.
The Lyman Gen6 is pretty good but the display and keypad are a bit small and it takes a fair bit to clean out fully when using different powders through it.