No problems and have 2 bank accounts and a retirement account that is self directed there too options for that include mutual funds, cd's, and regular money market cash account.
Easy to use and very well organized including end of the year stuff for taxes.
Usually they are offering something to join, like $75 cash....
Go with a reputabile company like E- trade or Fedility(AKA BIG F).
It is so nice to trade from your computer in your PJ's
Some of the Big Guys will charge more than E -trade.
If you have over 100k The Big F charges $14 trade fees.
But if your balance falls under 100k WATCH OUT the fees are upped.