Very few logos use gradients to their benefit and this is not one of them.
Also, the wordmark ("ATLASSIAN") has too much going on. This L-A pairing has been used to death, including several high-profile logos. Customized bar in A is lost in smaller sizes and looks like a rendering artefact. And it's not even kerned well, in the SIA part.
The font choice is going to bite them in the back very soon. Single-story "a" and overall playfulness is suitable for a lifestyle/cooking blog, but not for a tech company catering to technical people.
I'm going to guess it was an in-house rebranding job with little to no field validation. Looks like someone with a bit too much carte blanche got carried away with artsy-fartsy designy trends and forgot to actually check the results against their userbase.
EDIT - Ahhh... they got a rockstar designer to redo their logo. A guy who did a Twitter "rebrand" (tightened up their bird logo). This probably explains why the logo is so off the mark.
Personally, I just can't wrap my head around it. Pick a colour palette that matches your business (blue = calming, red = aggressive etc etc), and make a mildly unique and attractive shape with those colours that is related to your businesses name. I've had it explained to me a million times but I still don't see how this could take more than a couple of hours, it just seems like a massive exercise in overthinking a very simple problem.
https://s-media-cache-ak0.pinimg.com/originals/dc/a4/bc/dca4...
I wonder how many $Ms that cost.
It's a shape of a racked server + an usual, but fitting choice of color. It's instantly recognizable and versatile as hell.
One more time I would like to say how great is the Trello team of being able to deliver a logo that survived a redesign of it's new owner.
Does this mean they've also done away with all caps on JIRA? Or was that changed a while ago?