A ten point article 'The Riyadh Compound Bombings: Ten Years, and Ten Lessons, Later' by Dr. Thomas Hegghammer, from CSIS, which details:
It is hard to overestimate the political impact of the Riyadh bombings. These caused a major shift in Saudi attitudes toward Islamist extremism and a complete overhaul of the Saudi internal security apparatus. The terrorism campaign—and the Saudi response to it—also did much to change Western perceptions of Saudi society, many of which, in retrospect, were biased and flawed. Finally, the campaign backfired against Al-Qaeda, leading to its demise as an organization in the kingdom. In short, the learning curve was steep for everyone involved. Specifically, the experience taught us ten important things about terrorism and Saudi Arabia.
Link:http://www.aawsat.net/2013/05/article55301428

I do wonder if the apparent success of Saudi CT plus is dependent on their wealth, few other nations could afford the options it has used.