I've been using QuickBooks desktop for five years (it has more features than QB online). When I saw the Deskera deal, I thought it would finally be a solution to replace QuickBooks. After a month of trying Deskera, the jury is still out (I'm running double books for the first quarter to compare). I haven't found a total dealbraker yet, but I'm hesitant to jump full on in.

Here are a few pros and cons that stood out to me:

Cons:
—Discounts (can only be by product line item), not a discount on the entire invoice (i.e. flat $ amount off or % off)
—There is no way to stop the sync between Sales contacts and Books contacts. The issue with this is as you add prospects to "Deskera Sales," they muddy up your customer contacts in Books.
—No ACH payment gateway
—If you create a tax rate, you can't delete it (there is no warning about this on the screen)
—Invoice and document templates are laborious to create (not intuitive)
—On the P&L statement, there is no way to drill down
—In Deskera Sales, there is no way to add a company name and a contact name (there's only one field). This is totally counterintuitive.

Pros:
—Customer support is very responsive, although most often the answer is, "currently, this is not possible, but we'll share your feedback with our product team."
—Nice interface
—Mobile app is great
—If you have multiple companies, it's easy to move from one to the other