Cheap Drive ESC

[Rapidrory]

So I was doing some research whilst designing a beetle weight ESC when I came across these:
http://www.dx.com/p/jb-diy-10a-brush...3#.U6csjfldWSo

They're very cheap at about £5.50 each, and have free shipping to the UK. They only do 2 cell lipos, but at 10A with 20A peak they should do fine for beetle weight drive. The reviews look good as well. Has anyone else come across them previously? Seeing as I'll never beat them on price, I'm just gonna buy a pair of these instead of making my own for once :P