I am running KiCAD 4.07 on a 2012 rMBP and 2011 iMac and running a V5 nightly on the iMac as well. I use both trackpad and mouse. Have created several released boards ranging from small stuff (50-150 components) to a pretty dense multi-layer board with 600 components (or so). I have used OrCAD and Ultiboard in the past (distant past
I did struggle with the mouse/trackpad integration at some time but messed around with the settings until it worked for me. There is no lag or any other funny business that would prevent me to use KiCAD. With 4.07 I did find that Pcbnew’s color scheme is terrible and distracting (great this is now customizable in V5) and of course component management was/is ridiculously complicated but this applies to other OSes just the same. But I should note that component management is something that one should give dedicated attention to - KiCAD, OrCAD or any other software package.
I did not want to get into an expensive CAD software because I think that most of these eeCAD packages are developed by software guys who have no affinity with hardware design, don’t care much about workflow or - dare I say it - beautiful looking software. (just my opinion guys, just opinion). So why spend the dollars if KiCAD is free? After gotten used to its quirks I am flabbergasted and extremely pleased how well it works. For open source, developed in a distributed environment - it is fantastic. I’d say it could survive well as a commercial package too. On the Mac it works great - I use commercial software on the mac that does not behave as well as KiCAD.
I’d say; if you need eeCAD software and you have a Mac and you dont want to spend much/any money, stop listening to folks on Reddit and install it and try it out for a few weeks on a real project. I think you will end up liking KiCAD and get a very caring, helpful and responsive community on top.
just my 2ct