When comparing Adobe Illustrator CC vs Darktable, the Slant community recommends Darktable for most people. In the question“What are the best graphic design programs?” Darktable is ranked 6th while Adobe Illustrator CC is ranked 22nd. The most important reason people chose Darktable is:
There are a lot of different modules.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Amazing integration with all other Adobe Software (PS, Ae, Id...)
Pro It's the industry standard
Pro Advanced tools
Pro Has all the vector tools you could dream of

Pro Flexible, non-intrusive interface
Small palette menus and the ability to save multiple menu layouts keep the UI out of the way.
Pro There are many tutorials on the internet

Pro Frequent updates
The CC subscription model means that major releases are no longer necessary, so existing users gain immediate access to new features.
Pro Easy to learn
It's easy to learn how to work with this software.
Pro Feature rich
There are a lot of different modules.
Pro Fast and Flexible
A very well considered UI makes edits fast and fluid. You can redo or undo any step without disturbing any other part of your edit. The UI doesn't get in the way.
Pro Good batch editing capabilities
Darktable allows applying the same set of operations to multiple images and saving your history stack as a style (you can pick exactly which modules).
Pro Edits are saved to a separate file
Original files are untouched by any edits. No worries on what was done before or if an accidental save occurs. All work is separate from the originals.
Pro Customizable
Darktable allows favoriting modules and remapping hotkeys.
Pro Allows for local adjustments
Most modules, by default, affect the whole image, but have the option to only be applied to masked-off areas (be those drawn masks, parametric ones, or a combination of the two).
Pro Supports tethered capture
On the camera set it to use USB Remote. Open Darktable, on the left side under Import, click scan for devices. The camera should appear. Click on tethered shoot. Next on the right side look for the gear icon above the battery n/a and click it. go to the session options tab, and change the base directory to the location you want to save photos. close that settings window and try taking a picture. It should come right up.
Cons

Con Subscription model
Illustrator CC requires a $19.99/mo (minimum) subscription to use. Adobe no longer sells previous versions of Illustrator.
Con Heavy use of CPU/RAM
Con Steep learning curve
Con Very slow
Even in very good computers Illustrator is very slow.
Con You never truly own this software
As soon as you stop paying you to lose access to the software. This should be illegal.
Con Install useless and intrusive software
When you install any Adobe product it also installs lots of useless and intrusive software and services.
It adds two services and up to three auto-starting software that runs when you start your operating system and keep running constantly. One is for auto-updating, others for "checking" if you are not a pirate and some others that seems to be just to collect information.
Con Imprecise coordinates
Oftentimes your 140 is 139.9997 and as a vector program it doesn't rely much on precision.
Con No proper selection mode
In a vector-art program, the critical selection mode is the one in which objects must be fully enclosed by the selection marquee to be selected. In the simple example shown here, selecting all the circles should merely require you to draw a selection rectangle around them. But in Illustrator, there's no way to avoid selecting other objects as well, even though they're not totally enclosed by the selection box. Year after year, Adobe fails to fix this bizarre oversight, making Illustrator a tedious pain to use.
Con Buggy
Software can be very buggy at times.
Con Can be overwhelming
There are a lot of different modules. You're going to need some time watching tutorials to understand how to get the best out of it.
Con For tethered capture on Linux you may need additional software installed that is not a dependency for Darktable
First make sure you have gphoto2 and libgphoto2.
Con No official Windows version
Whilst official builds exist for Linux and OSX, this isn't the case for Windows (though unofficial versions do exist).
