Edelrid Flycatcher Pro 6.9

I am wondering if anyone has had experience with the relatively new ultralight Edelrid 6.9 ropes. I'm looking to replace my twin 9's which are about 4 years old with newer, lighter ropes, but am a bit skeptical about something as skinny as these-they even come with their own belay device since Edelrid claims they're too thin for standard ones. I've checked quite a few websites but could find only a single review. Here's a link to one source for the ropes-unfortunately there's not even a single review on the site. Edelrid Flycatcher 6.9 I've been climbing since the '70's and have several Edelrid items, all of them good, but as an old fart, just got a 9.8 last year for my single lead rope. 'Til then, my lead rope was a 10.5. Thanks for any help anyone can give.

Sierra trading post had the set of 60's w the belay device for $170-180. I've got a set of Blue Water 7.1's and only use them on ice routes, they're so skinny that I'm afraid i'd trash them on rock. Rope management is key with any skinny rope and even paying attention it's easy to get a birds nest. They're not a workhorse and I only break them out for special occasions. I wish I would have got a pair of 8.2-8.5's as I'd get more use and could use them on rock