anyone using this? i've seen some reviews but i'd like to hear from a normal human / ever since mooch said that you could triple battery life by only charging to 4.0 or 4.1 i've been looking for a charger that i could set to do that. this seems the only one on the market that will do that. it's pricey n looks hard to use tho. so, if anyone has tried this i'd like to hear about it, please.