good software for private EKST Declaration

I use tax for several years (and previously WISO passbook).
The program is intuitive and logically structured.
The entries are checked for plausibility.
There is also an extensive but comprehensible program aid and assistance with a reference judgments on tax law.
Program updates can be downloaded automatically on request.
ELSTER is integrated.
Inputs are possible via the program masks or directly on the forms.
Users is the access from a wizard filters the relevant points to his, relieved.
The acquisition of master data or all the data from the tax return for the previous year is possible.
The tax assessment can be checked against the values ​​calculated by the program.
A good software at an affordable price (tax Standard Edition can be used for up to 5 EKST declarations per year).