Calvino; officially, the charger that comes with the CX2 is a balancing charger. It doesn't really balance to the microVolt but it does balancing somewhat.
So FatPatt, don't worry about that too much. It'll still charge both cells (in CX2 LithiumPolymer aka LiPo there are 2 cells, it's one battery ) and 10 minutes is pretty good flight time! I get like 6 minutes or less on my stock batteries (although i almost never use them anymore).

As you said Patt, there are sooo many different types of chargers and balancers. If you're just getting started, just wait until you know what you want and how to use it, save up for it a bit, do some research and until that, just use the stock charger . I guess most of us still use it every once in a while! I now have a semi-professional charger with a high-end balancer for my 3 and 4 cell LiPo's (for a bigger heli ), but i use the little CX2 charger next to it (so i can charge more than one at a time ).

Hehehe, don't expect a so called 'hands-off' hover your third flight mate . It should be farely stable by itself, but there's too much external factors that can bring the little guy out of balance. It's only like 220 grams, so even the littlest AC breeze will move it . Once you get more acquinted with the CX2 you'll find that you're no longer reacting to what it does, but you 'feel' what it's going to do .

Upgrades can either massively help stability/flight or mess things up real bad . Again i suggest; fly it, fly it, break it, fix it, fly it, break it, fix, fly, break, fix over and over and you'll soon learn how stuff works and what can help you with what and what you need for you're type of flight .