I have had two of the 2s 5000mah soft case lipos for over a year and have had great luck with them.

I also have a 5000mah 2s hard case that has been great.

Picked up a 4500mah 3s nanotech as well, and it has been amazing.

Just picked up 3 lightly used 5000mah soft case 40c 2s packs, and will use them this weekend for racing.

I have been really happy with turnigy lipos so far. They are the only ones I have ever bought!