Don't Worry Powerguider DO deliver!
Let's be honest, I did worry when I ordered my battery from Powerguider and a Chinese name popped-up as having received my payment. Only then did I look for reviews of this trader (I know very stupid of me). I feared the worst but was very pleasantly surprised when the battery I ordered on the Wednesday arrived the following Saturday. It was the right battery, looked to be of decent quality and is holding a really decent charge. So, I'm not sure if I'd recommend them because of the really bad experiences of others. But if you order from them before reading reviews and then worry (as I did), keep your fingers crossed because all is not lost.