Major advantages and disadvantages from Zephyr and Adaptavist tools

[Bhasker chary]

Major advantages and disadvantages from Zephyr and Adaptavist tools, 

On Zephyr plug-in I have been using extensively and I know all its features, but I wanted to know from Adaptavist tool prospective, 

If anyone has the details comparison between these plugins it would be really helpful.

Thanks

Bhaskara Nemuri 

[Nic Brough -Adaptavist-]

I'm not going to get into this, because I can be seen as biased.  But to help someone else who might have an independent answer or opinion, could you tell us if you are on Server or Cloud?