How good are these NeuEnergy or Neumotors Lipo's ?

[SpeedAssault]

First off I know I should be buying a Thunder Power, best quality longest life cycle. I have one now, but I need a large 5s and need to save some $. Tryng to pick a suitable Lipo for my 4wd 1/5 8lb revo losi hybrid onroad rally car

I heard from Castle that Neu motors batteries are very good quality and having a sale . http://www.neumotors.com/store/page12/page12.html
Anybody know the quality or have experience with the Neumotors or the Neuenergy batteries ? ? ?
Rc-monster store Neuenergy batt here http://www.rc-monster.com/batteries.php

5S 5000 mah 25c continuous discharge/50c burst Lipoly pack from Neu. 5s 18.5 nominal voltage. Includes 12g wire and female Dean's connector.
125 amp continuous discharge capacity. 250 amp short burst discharge capacity!

5S 5500xp NEU5500XP 5S1P 18.2volts
25/50C Discharge/5C Charge

Thanks