I like that there are multiple options for pricing plans with different budgets available which makes things easy when working with my business partner who has limited budgeting experience.
There's also nothing really bad about it but if you're looking into this service then make sure they can provide good client support otherwise your account will likely get closed or abandoned by them within days/weeks after starting a project together. The benefit we've realized from using Marconix was that our team members were able to work remotely more easily allowing us greater flexibility while still getting quality results.