I love how easy it was for me as an independent blogger / content creator! You can easily find clients who are looking exactly like you (i'm in fashion, so most of my clientele fits this category).
It's also very helpful when searching through jobs because some have filters set up already which makes finding something easier than scrolling past all those other sites where they don't filter by niche or style at least not yet anyways haha!! Also there aren’t many cons about using them but if anything i noticed their prices were higher then others similar platforms out here - however since launch pricing has dropped quite significantly now though its hard comparing between different services/plans currently available online right? So yes definitely try one month free before committing yourself fully otherwise your paying too much money upfront. Blogger marketing needs more help from companies such as these especially given we're trying our best every day creating new posts etc., having someone else doing everything saves us.