You can generate most megastones, any pokemon (not able to pick natures,ivs,level, or moveset :L), items like leftovers for pokemon to hold, you can max affection and friendship change region, sex, and make a pokemon shiny. Datel has the ability to make alot more doable. I've heard on other forums they could add codes for EV, IV, moveset, and ability modification but chose not to to make online battles fair for everyone. Amazon usually has it for 22usd so yeah its not horrible value for price. Do remember that if datel ever shuts down its servers then we're all screwed and essentially left with a worthless piece of plastic.