My memory is shocking! Up to 4 numbers / patterns were fine but over that and it had gone. It crashed on me during the verbal memory though, and doesn't look like it's recorded a score at all (i wasn't that bad!).
I didn't understand the target detection, was waiting for the target to change so lost a few seconds at the start on that one.
I did it on my phone, wonder if it would be easier on a larger screen?