MongoDB and C# syntax

Normally while using mongodb-csharp driver you have to add new fields with sequential Appends.

Well, personally I prefer

Document doc = new Document(); 
            doc.Fill( 
                Width => 100, 
                Height => 200, 
                Attributes => new Pairs{ attr1 => 1, 
                                         attr2 => 2 });

over

Document oldstyle = new Document() 
                .Append("Width", 100) 
                .Append("Height", 200) 
                .Append("Attributes", new Document().Append("attr1", 1) 
                                                    .Append("attr2", 2));

Do you like the first case? Try MongoDB C# eXtras