Yep that looks right to me, the GetGridHtml method also takes an extra parameter where you can specify the partial view that should render it.

@Model.Content.GetGridHtml("grid", "Fanoe")

"grid" is the propertyAlias

And then in Views/Partials/Grid/Editors (in 7.4 it's moved from App_Plugins) you have a file called Fanoe.cshtml with the following:

@inherits UmbracoViewPage<dynamic>
@using Umbraco.Web.Templates
@using Newtonsoft.Json.Linq

<h1>Fanoe</h1>
@if (Model != null && Model.sections != null)
{
    var oneColumn = ((System.Collections.ICollection)Model.sections).Count == 1;

    <div class="umb-grid">
        @if (oneColumn)
        {
            foreach (var section in Model.sections) 
            {
                <div class="grid-section">
                    @foreach (var row in section.rows) 
                    {
                        @renderRow(row, true);
                    }
                </div>
            }   
        }
        else 
        { 
            <div class="container">
                <div class="row clearfix">
                    @foreach (var s in Model.sections) 
                    {
                        <div class="grid-section">
                            <div class="[email protected] column">
                                @foreach (var row in s.rows) 
                                {
                                    @renderRow(row, false);
                                }
                            </div>
                        </div>
                    }
                </div>
            </div>   
        }
    </div>
}

@helper renderRow(dynamic row, bool singleColumn)
{
    <div @RenderElementAttributes(row)>
        @Umbraco.If(singleColumn, "<div class='container'>")
        <div class="row clearfix">
            @foreach ( var area in row.areas ) {
            <div class="[email protected] column">
                <div @RenderElementAttributes(area)>
                    @foreach (var control in area.controls) {
                        if (control !=null && control.editor != null && control.editor.view != null ) {
                            <text>@Html.Partial("grid/editors/base", (object)control)</text>
                        }
                    }
                </div>
            </div>}
        </div>
        @Umbraco.If(singleColumn, "</div>")
    </div>
}

@functions 
{
    public static MvcHtmlString RenderElementAttributes(dynamic contentItem)
    {
        var attrs = new List<string>();
        JObject cfg = contentItem.config;

        if(cfg != null) 
        {
            foreach (JProperty property in cfg.Properties()) 
            {
                attrs.Add(property.Name + "='" + property.Value.ToString() + "'");
            }
        }

        JObject style = contentItem.styles;

        if (style != null) 
        { 
            var cssVals = new List<string>();
            foreach (JProperty property in style.Properties()) 
            {
                cssVals.Add(property.Name + ":" + property.Value.ToString() + ";");
            }

            if (cssVals.Any()) 
            {
                attrs.Add("style='" + string.Join(" ", cssVals) + "'");
            }
        }

        return new MvcHtmlString(string.Join(" ", attrs));
    }
}

Note that it looks like in 7.4 GetGridHtml(string, string) is deprecated and it is recommended to use GetGridHtml(HtmlHelper, string)

is working on a reply...