I consider myself as an advanced player, solid fundamentals with strong wrist. I play mostly singles but would like to play a little bit more doubles as more frineds of mine play badminton. That's why i am looking for a doubles racket. Though i don't know exactly the different between singles' and doubles' rackets, but i guess it's due to the difference in game plan. I don't mind playing with demanding rackets, as quite a number of my singles' rackets are pretty demanding.
You will often find people go for a slighty head heavier racket for singles and a quicker racket for doubles. My recommendation would be a Victor MX80 if you can handle a stiff racket as this will combine speed with power which is a great combination for doubles.
The latest one is the Gosen Shiden, yet to test it completely so no review is available at this moment.