Since its release in October 2016 (see here) much has been written about ISO 37001 and one’s view of it likely depends on one’s background, experience and motivation.
If you are familiar with the numerous sources of best practices in the anti-bribery space, then ISO 37001 was (and remains) a complete yawner, indeed a disappointment as several best practices are not even captured in ISO 37001.
If you are not familiar with the numerous sources of best practices in the anti-bribery space, and/or you are seeking to market your compliance practice then ISO 37001 was (and remains) probably a big deal.