puppy training pads, yay or nay?

Bessie is seven weeks, and we have only had her three days. She is doing very well with potty training, and whenever I take her out in to the garden and say "good girl, good girl" she wees on command, which I find incredible that she has picked that up so quickly. We are, however, still having accidents as she can pee twice in short succession and I am not able to pre empt every one, and the occasional pooh. My question is therefore, what do people feel about the training pads? I understand that she is very young and will have accidents, and as we have parquet flooring it is not too much of an issue, but if the pads ensure they go in just one area, is it more sense? What do you all feel please?