Received an email this morning letting me know that Marvin Windows has update their Revit content, they wrote:
We are happy to inform you that we have posted about 41 different Revit families to our Marvin Revit Page.
We want to thank those of you who helped us test these families and for spending the time to write and tell us your comments. We were able to incorporate many of your requests in our families. We hope these families will be an asset to you. Take care and please let us know if you have any comments, complaints or questions.