Review for Grand Sierra Resort and Casino (GSR) Review For Port of Subs Google User Jun 24 '18 at 6:10 Rude service kid didn't even understand why I wanted the pastrami heated, all other Port of Subs I've been to had good service and really good bread but the place there in Sparks NV leaves a lot to be desired as far as customer service is concerned. View full site to comment or like