Used it to generate leads extensively but shut it down later. Specific lead numbers aside as it differs from company to company but the breaking point for us was a long term analysis we did where we found that the revenue generated via bing ad leads was miniscule when attributed to various touchpoints. Not worth the effort. My guess is that people using Bing are people who’re not savvy enough to download other browsers or just don’t care (maybe very old or very young audience). May work for B2Cish SaaS categories like Shopify apps or email marketing software but anything beyond that you’re better off sticking with Google ads.