I was only on the 200 and came in as lanterne rouge, even though I was well under 12 hours. I'm sure everyone else is speeding up!
Very enjoyable ride indeed - wonderful scenery and castles, good grub from various coffee shops. The climb through Blaenau was a struggle after 150km but the legs managed it, and were rewarded with a good run in to the finish.
Thanks to the organising team, but the routesheet was not fit for purpose - one fellow rider had to put up with my slow crawl for around 10km as he didn't have gpx. He was more than a little cross. I guess a warning on the description on the website might have avoided problems