German, or Austrian? (not that it matters much, except that perhaps it's not the website you meant to link to)
Also, the website is strangely quiet about pricing - that doesn't bode well.
When Australian government introduced similar here for payroll, part of their spin was that free providers are available. I suspect that once the system is fully locked in, that the free systems will then require new paid updates in order to keep working, or the eligibility for the free system will be tightened up. The paperwork and fees and registrations and licences and insurances necessary to run a small business here feels like a rort.
