Since Continumm split from Zenith Infotech, there has been impressive movement to make things better such as updates to the portal, additions to scripting, the Mac agent, and much more coming. I was not a huge fan of Zenith RMM, but it seems that Michael George and his team are doing the right things to improve things. I will say the support seems to be improving since beginning of the year. There is also better communication to partners.

For the price you pay, you get a lot. I also use GFI which seems to be a another RMM tool creeping up for MSPs, but they still have many features lacking still. GFI is working hard, but I just feel Continuum is ahead right now. Add the fact I can add helpdesk and included NOC, it's hard to beat the big RMM companies.