i got same problem...
file sonic has got some nice options, but some terrible flaws...
comparing to megaupload:
mu: upload is always there
mu: supports file names without particular problems, doesnt put underscore, is able to understand è é and similar
mu: hard to organize files in folders since you always have a copy of them in the root
fsnc: upload not always in file manager which is a pity
fsnc: you have to have an hard time using bulk renamer to kill every è é ò ù and is not suffice... your file names become brutally changed like l'asino che vola becomes l/'asino_che_vola
fsnc: easy to catalog and organize files that make it alive in file manager
fsnc: you can have 1 master folder link so people can see everything you uploaded (use at risk
)