it's not that they are nood batteries, for some they work great and for others they were the worst investment. It's Chinese quality issues, it's hit or miss. GensAce is a trusted brand and rather affordable for a 450 size heli. Right now they are 17.93 for a 3S 2200 25C battery on sale at xheli, also out of stock. You can see my set up in my signature.
i am/was a noob myself and I started on GensAce, I am finding it hard to change over to something else since I know these are working just fine on my setup.