I have not seen Feodora, but have seen a few girls from this agency. Overall it is okay agency though my experience has ranged between neutral and positive for various girls. Very few I would rate as negatives.
Feodora does not have reviews, I would suggest go for someone who has been reviewed more (and not just on Diva's website). You will find many on this site itself. I have found that most stunning looking girls - if attitude is bad - you are going to regret the punt; but if her attitude is good you will have a great time even if she is not the best looking girl in world
All the best