If you are looking for a single tool, not integrated with any CRM or PM tool (other than Google Apps, but you don't manage your customers in Google Apps) then try Mojo.
If you are looking for a ticket system,integrated with a list of CRM systems, or Zapier or similar integration bridges, don't select Mojo.
And do not believe the support or anybody's else's confirmation that a feature will be supported soon, it is purely arbitrary, and depending on who you talk to at the company you get different responses.
Be clear on what you want and how far you want to grow. You will hit Mojo's limitations and the company's inability to grow with your needs very soon.