* Prices may differ from that shown
I bought this USB memory stick mainly based on its capacity and price - I didn't consider brand name or format initially.
When it arrived, I was very happy - the sliding mechanism for the USB connection is excellent, and has survived two months in my rucksack without any damage so far, and it still slides smoothly.
The white logo on the side is starting to wear off - but that's par for the course.
The capacity - as advertised - is 8GB, more than enough for pretty much anything you might need to transfer (but not enough to keep it there permanently!)
Read performance is fantastic throughout - large files, and large collections of small files, can be read very smoothly.
Write performance is not bad for large files - MPEGs, large ZIP files etc., but suffers when copying large collections of smaller files (it took nearly an hour to copy 5000 small HTML files to the memory stick in one test). Your best bet is to compress/archive before copying to the stick.
Performance is no better or worse than any other USB stick (except the specialised high speed ones), but capacity and form are very impressive.