While I was looking for a Jira alternative I stumbled upon Zepel.io which not only is a note worthy alternative but much much more. I am pleasantly surprised by the product.
Zepel.io is beautiful, easy to use, fast and full of features. We are a small consultancy team and even though the rest of the members aren't familiar with agile process and the relevant tools, i took me less than hour to walk them through the product and explain how things work etc and tailor the product to the team needs.
Support is exceptional also. I had to reach support twice, first for questions about the product and second for a bug. The response was immediate for both cases, and they even fixed the bug I reported within 15 min.
All in all I am amazed. Keep up the great work guys.