HABİBE VE ECİLER

I am an seo freelancer and I have just landed a client who needs some B2B leads (mostly emails and websites) for their newsletters and e-mail marketing campaigns. I am leaning towards https://wowitloveithaveit.com since they have broken down their B2B lists according to micro niches which will give us more relevant exposure. Yay or Nay? Many thanks ;)