The English bitter is a rather misunderstood style, just like how some pale ales are not pale and IPAs have nothing to do with India, bitters are not that bitter. Instead, expect light hints of caramel and bread with a slightly dry, not too sweet finish. This is a beer that can be enjoyed on a warm afternoon in the sun as much as on a cool patio in the evening.
Call it what you want, but don't call it bitter :)
5.2% ABV, 25 IBU, 473ml can