Taking a look now, will update this comment once I'm done...
Results follow:
Issue 1: /hilo/register: On the Register page, I am unable to click on the initial password box, with no explanation as to why. The log in to the existing account link is under the border of the main container, presumably because of fixed height css.
Issue 2: /hilo/register: Unable to click on the button you need to click on to register - looking back, this is untrue, you seem to be using ajax calls to load pages and send information, but without any kind of notification, so to the user it merely feels unresponsive.
Issue 3: Your images are not locally hosted, IE, your encryption on your SSL appears as broken. This is more damaging than having no SSL to none developers, etc, who whilst are not your target audience, will instinctively distrust your website. Either load them locally or through an image host with https.
Issue 4: /hilo/dashboard: Too much on the screen for a first time user, consider a simplified dashboard with the option to unlock all features, while you run new users through a simple (but not required) tutorial.
Issue 5: /hilo/dashboard: No idea at all where to click until 30 seconds of mouse movement, there is no indication at all that the links you are using are in fact links, they look like (and are) simply black text.
Issue 6: /hilo/cloud_accounts: Silly scrollbar appearing in the cloud accounts area once adding the first cloud account, consider using no margin and having the padding and the width all add up to > 100% to remove this issue. Also, the EDIT and DELETE links look quite ugly.
Issue 7: There is no clear aim for what you really want me to do, I am pretty much following difficult to find requirements with no reasoning behind it and no explanation of what this will all do, your average user would already have quit the site and would be looking for "X but simpler".
Issue 8: /hilo/cloud_accounts/create What you asked me to do on the last page took me back to creating a new cloud account here, feels like I'm going in circles, completely lost as a user, closed the browser window, will never open again.
Criticism aside, some constructive... criticism?
I like the look of the app, it feels tailored to your clients, very nice and technically working app.
Feels like you are doing too much at once, it needs simplifying for the new guys, consider a sandbox approach, treat your users like idiots till they decide they should be let out of the cage.
Definitely let the user know what to do next, I got lost and left and I was pretty determined to follow through.
Let the user log in prior to confirming registration but again, sandbox them until they do, because having to open my dummy email account was a real pain in the ass.
Feels like it's almost ready, just some tweaking really now :)
And you're welcome.