Regrettably I was foolish enough to part hard earned cash with one of the aforementioned - a company that has recieved mixed reviews here; some very promising from alledged traders on the programme...
At the firm I was with I performed very well on the sim, and well enough on the live market to make a consistent return but only very slightly... many of the other traders faired not so well, and infact 6 months on some are still sticking it out on the simulator with constant promises of being able to go live very soon.
If you want training on how to trade, have relatively deep pockets and are too lazy to search the internet for articles and read a few decent books then these courses provide an expensive time consuming alternative.
If you are serious about trading and are looking for a floor position then do some homework and apply to firms that offer on-floor training and do not charge, more often then not a firm that needs to charge often means they are undercapitalized and are not successful at trading themselves, or else why would they need to charge.
Just my opinion of course, make of it what you will, but be realistic. It is easy to let your imagination run a little far at times and the "mentors" at these firms are a perfect compliment to wishful thinking.