John M.

We recently made the COLOSSAL MISTAKE of signing up with Zoho One for our small business. (I highly recommend that you don't!)
Long story short, the Zoho One and Zoho CRM software are full of bugs. It was advertised as an "all-in-one" business solution that "seamlessly" integrates with all your business needs (mail, CRM, finance, marketing, etc.) It doesn't! Furthermore, Zoho likes to advertise their "award-winning customer service", which they are abysmally far from providing. We spent more time troubleshooting than we did getting anything accomplished. We contacted Zoho countless times over a six month period, which was a futile and frustrating waste of time. As mentioned by other reviewers here, they take weeks to return a simple email and they never answer their phones. All calls appear to be rerouted to call centers outside of North America. Technical issues are hard enough to resolve without being compounded by language barriers.
I can't speak for anyone else, but when I've got customers waiting, I can't delay my business operations for 6-7 days waiting for Zoho to get their act together, because my customers WILL and DID go elsewhere!
To make matters worse, the Zoho Mail software was constantly sending messages from trusted and established clients listed in my database to either Junk or Trash folders, and some of those customers believed I was ignoring them, so again they went elsewhere.
Zoho has cost us time, money, and energy. The only improvement they're capable of providing is stress.