I wanted to get the forums feedback on Zoho Invoice.  I'm thinking about using it for my business, but I've had major ongoing issues with Zoho Mail for a couple of years now so I'm hesitant on using another Zoho product.

Emails and getting paid are critical for businesses.  For those that use this Zoho Invoice, is it reliable?  Have you ever encountered any major issues—and lastly—would you recommend using this product?

Any feedback would be appreciated.