I am another 400 owner that would like to chime in....
Brian reckons she has a bad prop walk, I disagree - mine is backs up beautifully and I have the standard fixed prop. I back it into my slip a lot easier than my previous 30 footer.
No need for a bow thruster IMHO.
I love the C400 and was also looking closely at Beneteaus - nearly bought a used 423.
I have just finished a 9 month cruise to the bahamas and the boat was near perfect for that purpose.
C400 MKII #243