I have had the pleasure of not only drinking some Illy Issimo coffee but also designing their site, once upon a time. At the time they had a limited budget and couldn't afford both a desktop site and a mobile site. So, I made sure to put this on a responsive framework so they could have both. This came at a time when designing one of each was still pretty common. This was the first fully responsive site to come out of BFG Communications Interactive.
It was as simple and clean site that focused on the products and where to buy them. Sometimes the best solution is a simple solution.