yes

I was just curious as it didnt have Controller Support on the store page.

They're still ironing out controller support but it's there in a barebones form I think. Haven't tried it myself but folk have complained about no y-axis inverting and stuff like that.

They've said that they wanted to work on the pc version first and foremost but since they're working on xbone and ps4 versions of the game for next year, controller support in it's final, perfected form will also be added to the pc version.
I imagine the store page will be updated when they're happy with it. They probably just didn't want to advertise pad support and then not have it ready for launch in a state they were happy with.

In the current beta, you can control most of the game using a controller. We're going to be focusing on the controllers post-launch as we're working on the console release.

We are actually currently working on the controller support. It's not unlikely that all won't be done by release day, but it is somewhat playable now like Blondie writes and will be fully controllable not too long after release, definitely way ahead of the Q1 release date for the console versions.

Also, if you have any issues with the current controller implementation or feedback, please make a post about it in the bug reports sub forum and it's likely to be fixed sooner.

Xbox one controller works pretty good so far just reach for the mouse when you need to make an accurate shot.

There is no aim assist like console games.

Melee is fine using the controller

both Xbox and PC gamepad are very supported. Havent tried the Ps4 yet though.