How are Zippy Lipos???

[Revracer]

How are these two Zippy lipos? I might get the 4s 25c 4000 or twin 4300 20c 2s packs. Or maybe one of each I'm not sure yet because I don't kknow how good they are but they are a steal on price IMO. How do they perform though? All the reviews seem great? Anyone running these? I know thw 2s looks sloppy but hey for only $40 you can't have everything right? I can always put some shrink wrap over it to clean it up a bit... Thanks

http://www.hobbycity.com/hobbycity/s...5C_Lipoly_Pack

http://www.hobbycity.com/hobbycity/s...Ah_2S1P_20-30C