I'm in a similar position as requiring an AC/DC charger/balancer. I've looked at the specs/manuals/reviews and have observed the following.
1. All that glistens is not gold - Badge engineered chargers from the land of the rising sun seem to be hit and miss - inaccurate voltage measurement and questionable firmware. When you consider the price of a big lipo compared with the price of a charger are you willing to take the risk ? (cell cost vs the cost of your household insurance premiums after the fire)
2. The 0606i seems ok but lacks the cell storage feature of the BC-6, and the instuctions seem rather evasive where the up and coming A123 cells are concerned. No mention of the PC software capabilities although it does have a USB interface.
3. The BC-6 is the current runner but I'm a bit disappointed with the lack of net based firmware upgrade.
4. The FMA Cellpro 10s ticks almost all of the boxes but no AC supply option (it does have a cute feature to limit the supply current demanded so as to permit the use of any 12Vdc power supply which you may possess) but it seems to require a clunky USB to RS232 converter for PC support (a bit daft in this day and age)
That's my £2.5 worth (allowing for inflation). If you know of any other chargers to consider then let me know but at this point I'm kinda leaning towards the BC-6