E_Miranda, this is just my two cents' worth, of course: you don't have to give up AHK at all if you use UiPath. One distinct advantage is it doesn't cost a thing to install it and experiment. I did, got my certification, and the price was certainly right.
I don't have that much experience either with AHK or UiPath, but I have been able to easily integrate AutoHotkey scripts into my UiPath workflows using any of four methods:
1) "Run Auto Hot Key Script" [sic] from an add-on package "UiPath.Script.Activities", which is at least a partial implementation of https://github.com/amazing-andrew/AutoHotkey.Interop
. It requires scripts with functions if you're going to pass arguments in, and at least in its present incarnation you can only get a String return value.
2) Use the "Invoke Code" activity to write some VB.Net, add a reference to AutoHotkey.Interop, and use the methods from the link in your code. You can pass variables in and out, UiPath -> VB.Net code -> AHK -> VB.Net -> UiPath without too much trouble.
3) Use Florent Salendres's 'AHKActivities' package at https://discourse-cdn-sjc1.com/business ... 1988.nupkg
, which uses an IDictionary<of String, String> for arguments in and out to scripts.
4) Include an AHK executable (I generally use AutoHotkeyU32.exe) with your workflow and use "Start Process." Arguments in and out work well with this method.
I also use AHK to build GUIs for my UiPath workflows, one area where it's a little on the light side.
Some things are easier for me with UiPath, some are easier for me with AHK, some are easier for me with a combination. The tools are there, they're free, so I use them.
I've also given WorkFusion's free RPAExpress a very quick run, and uninstalled it almost immediately. Although it appears quite powerful, it is a Javasaurus. Just the mysql daemon it loads eats up a gig of RAM even when it's idle. Three jars run simultaneously and eat up another gig and a half of RAM - idle. For my old machine, quad-core Intel from around 2008, 8 gigs of DDR2 RAM, it's just too much. If you have an i7 machine with 16 to 32 gigs of DDR3, I would expect you'll be fine trying out RPAExpress. I didn't get far enough into to it to see if AHK will play nice with it.