What do you like best?
I like the simplicity of the software and the fact that it covers all my accounting business needs. I also like that my accountant likes the software. I can deal with my clients in multiple currencies, multiple languages with very little efforts.
The sales tax report (on the Canadian edition) makes filing the tax reports a breeze and is the primary reason I moved from Zoho Invoice to Zoho Books.
The bank reconciliation features make it easy to match the bank information against the books since it imports the data directly from the bank accounts and provides enough information to link it to the transactions.
What do you dislike?
When you have a problem or question, jumping through the hoops of their support team is often a pain. I've been using Zoho products for quite some time (Zoho Invoices before jumping onto Books) and, sometime, it feels like support has gone worse over time.
Books sometime lack completeness on customer-specific templates. You can have those for invoicing, estimates, thank you emails etc, which allows sending documents in the language of my clients. But when it comes time to send a late payment reminder, somehow the feature is missing, forcing you to manually review each reminder you are about to send.
The one thing I miss most from Zoho Invoice is the calculation of the late fees on past due invoices.
Recommendations to others considering the product:
If you are merely looking at generating invoices, tracking expenses and allowing credit card payments (and late fee calculation) Zoho Invoice is more than enough (used it from 2009 until 2015).
If you want to run a complete accounting system, with the tax reports, bank reconciliation, POs, etc, then Zoho Books is the natural choice.
What problems are you solving with the product? What benefits have you realized?
From a time perspective, the biggest problem Zoho Books solves is the efficiency in filing tax reports allowing me to get back to my core business faster.
It also makes it easy to stay on top of bad clients and make better business with their reports.