I'm a software developer that builds ads for HTML5.
I like the ide that you can upload independent HTML5 projects you optimize and maintain on your own (beside the hacks and workarounds, my team of Developers has had to upload working assets to the platform, this is issued in the dislikes with detail).
I strongly dislike the HTML5 creator abilities to manage files and locate creative assets precisely where you want them, it makes asset directory management painful and annoying, and discourages usage of the platform built in creator.
Creator custom controls are quite stiff for customization.
All platform features lots of 1990s web techniques like opening dialog windows, and actually I think the whole platform needs overhauling to even make it available in mobile platforms. (considering we can abandon Flash).
But some steps towards a compliant HTML5 Layout could be done so even in desktop all things look less like a Flex RIA (so 2000s) :)
GoogleWebDesigner and Adobe Edge support is niceIt supports GWD and Adobe Edge Creatives, and has notoriously outdated Documentation to implement EB classes on both.
1. PDFs? Really? Host a web page so is easier to update to current application version and platform standards!
2. Links to EB loader downloaded an old version of EBLoader.js and GWD directions state this: do not publish, how would you recommend that? If you don't publish your CSS will only have -webkit vendor prefixes, and the add would only work in webkit.. Absurd!
3. Adobe Edge Is a great animation tool, but your documentation points to old EBLoader.js in the PDF had to be updated with the Loader on Showcase Templates.
Creative Asset Manager.
Platform home screen is unhelpful for HTML5 ad creation should have a more clear and visible way to instruct developers their options. A starter Kit, sort of documentation, as in other common web API documentations, including all the possible scenarios (Custom Built ads, Adobe Edge, GWD and Platform HTML5 Creator, etc).
Showcase Standard and Rich Media templates could be an open sourced github group set of repositories that include all scaffolding to deploy optimized assets directories. I build one for our team using gulp, gulp build task creates zip files ready for deployment in seconds. You can use either Browserify, gulp or webpack, whatever the masses like the most.
Search should remember what users search the most and show it, as developers, my team searches for ads most of the time. Other users (campaign managers) will search for campaigns mostly.
They need to work towards, as much as other competing platforms, making this a modern way to do advertisement.
Either by improving the WYSIWYG, and renewing platform UX and workflow for custom ad units.
Is full of arbitrary and rather antiquated functionality, when things could be a lot simpler.