Depends on what you want to use it for. In my experience, it didn't perform well for niche outreach campaigns.
One of the main drawbacks was its cost relative to the quality of leads generated. I've found Google ads to be more effective in reaching the right audience.
@natalia_toth My primary audience includes innovators and creators in XR or digital twins. Google ads perform better as these users actively search for related information. On LinkedIn, even if the audience fits, engagement or response rates tend to be lower.
From what I have seen in my Sellinnate agency, it is worthwhile and has also brought very satisfactory results. Provided, however, that you have a clear strategy in mind regarding whom to approach and how to do so. Sales Navigator is at the end of the day only a contact tool, and if there is no proposal behind a contact that is in line with the recipient then the tool alone counts for very little
Cleverity