Oh and if you want really good coffee then I can highly recommend Full Court Press but there are plenty of other good coffee places such as Small Street Espresso, Playground Coffee, Blue Pig Cafe, Dom's Coffee House, Brew Coffee Co, Tradewind Espresso and Triple Co Roast at Elemental.
Bristol is home to many fantastic independent coffee shops and there is no need to visit a chain like Costa, Starbucks etc. as the independents are generally better priced and provide a better experience (drinks, food and service).