iCharger 308 DUO!
Hands down, the Best charger I've ever had (I just counted: in 30 years it's close to 60.)
It's really, really ugly (Color scheme is nasty bad ~I need a Wrap (Anybody know who's making wraps for the 308DUO?))
But I've had mine for over a year and a half and it works great! When you first start using it, the interface takes some time getting used to.
Only mistake I made was not waiting for the 406DUO. 40A/Channel charge/discharge(actually will discharge at even higher current.) When I bought mine the 406DUO wasn't even known of yet.
....The only suggestion I can make is that the fast charging and insane speeds comes with a few trade-offs. When you charge/discharge at high (more that 2C) currents you run the risk of having to replace batteries more frequently, have puffed cells, ...or...Worse Case Scenario...LiPo Fire!