Here's the poster in situ

Here's a close up of the code It's a reasonable physical size and the information density isn't particularly high - so well done on that front. I'd place a bit more whitespace around the code - but it scanned easily enough on my phone.

The website itself is ok. Nothing stunning. It's a great concept site - like Post Secret or GroupHug - but it really ought to be more mobile friendly. The URL isn't specific to the code - it's just http ://www.thefamilysecrets.co.uk/ - so they have no real way of knowing how many people scanned it.

Still - good to see QR codes becoming more prominent.