I have been actively trading for about 6 months but have had an account with OptionsXpress for a couple of years.  My dad used to use TDA and was constantly blocked from trading for supposed chill restrictions.  I have never been blocked from trading any listing and have had no complaints whatsoever.  I don't see OptionsXpress discussed here or elsewhere but thought I would throw in my two cents for those looking for a possible alternative.  GLTA!