Dear
@ArianeInBerlin,
thank you for sharing the question with us in the community.
I personally have no experience with the company, however they seem to be professional at the first glance. In such case it is a good way to ask for a consultation and then what they charge for the service they are offering.
I will do some further research and will let you know if I find out more Informations.
Best regards,
Nilab