Bad Elf GPS Receiver

[Daram]

Hi All

I'm looking at getting a Bad Elf GPS receiver for my iPad 2 (WiFi only)
(I was going to post the link for it but can't do it as a newbie. Just google Bad Elf GPS and it will show up).

If anyone has used this product, can you share your experience with it? Which apps it works well with and which ones they don't.

Thanks