There is a comprehensive review link in my signature which is worth reading. Also, read HKJs technical review of this charger and alternatives.
The SkyRC is very capable but more aimed at hobbyists. The XTAR Dragon is more consumer orientated and simplistic. The Dragon is currently my charger of choice.
I have this charger as well and wrote a review for it, the percents are all wrong, but it does charge perfectly well and can do 1A for all slots and 2A for two slots.
I would not buy it because the cost is more then the features you get in return.
I am also pondering this charger, out of the dragon or skyRC mc3000. Or do i just buy another opus bt c3100 v2.2 as it does everything i need……………decisions decisions!