Smoke & Pepper, the largest dining destination at Alley on 25, showcases Asian-inspired barbecued specialties prepared over an open-fire barbecue grill. Dig into succulent BBQ grub such as Grilled Diver Scallops, Grilled Squid with Green Chili and Shiso Pesto, and more.
it means things will only get worse from this point on. I agree that it can be meant two ways...either it's going to get worse and go downhill or that you've made it over the hard part (the obstacle or hill) and it's going to be smooth and downhill  from here on.F you are an optimist then it is a good thing. If you are a pessimist then it is a bad thing. It most often is a double entendre, encompassing a hint of caution within the concept of coasting. Hard work will take you climbing up a hill, and once you reach the peak, gravity will slide you down the other side.
Because of the similarity of these two phrases, the expression It's all downhill from here is often used ironically or humorously, specifically because of the implicit double meaning - The best thing about getting older is that, once you've passed your peak, it's all downhill from there..owever, I can understand your confusion, since the very similar phrase to go downhill means to become worse - Since the car crash, Jim's tennis game has really gone downhill..