I think the good think about the dbfx is they have a demo account which gives you chance to play around before you do a commitment.
You won’t find many forex trading companies has offers you these facilities.
Also, personally I don't like downloading stuff on the my computer, especially if you have a mac, many of them ignores mac users.
These guys have online version which you can access it anywhere with internet connection. See their profile at
DBFX - Wikipedia, the free encyclopedia or if you are twitter person
dbFX (dbfx) on Twitter