STS is the most successful bookmaker in Poland, and since 2019 they have been targeting even more regulated European markets, through the launch of STSBet.com and STSBet.co.uk. The sportsbook is provided by BetConstruct, offering the bettors an enhanced betting experience, thanks to features like Counter Offer and Superbet. Additionally, they are an opinionated book publishing their odds earlier than most of the sportsbooks. They bring high odds on football, but unfortunately, this is not the case for basketball and some secondary sports. The addition of live streaming and audio commentary give a huge boost to the live betting section, but on the other hand, they have to offer somehow better odds at this section. STS might not be Bet365 or Bwin, but they still are an excellent mid-class book, deserving your attention.