What is your main purpose of using these PCs? Android PCs do not have a lot of the Windows equivalent software. You can find Microsoft Office and other popular tools but something more specific or custom made for Windows is going to give you a problem.

I've seen some offices run completely on android machines by using Citrix Receiver, which is a virtual environment that hosted on a Citrix farm, able to handle anywhere from 5 to 50 concurrent users per farm depending on how powerful the hardware is.

I think you should be okay to go with Android if thats the requirements. Those apps are available on Android and online tools basically works the same everywhere with some really minor exceptions.

Why don't you download a tool like Bluestacks and try to work with it? Bluestacks is an Android emulator you can install on your Windows machine to run android applications. It is not the same as a Chrome Book kind of thing but you can get a feel of the limitations. Your experience will come from the apps itself, not the OS since Android OS is useless without the apps.

http://www.bluestacks.com/

Also Mac and Android are 2 entirely different things. Mac OSX laptops are made to function like laptops. It beats Android anytime. You might face difficulty converting windows users to Android though.

I don't think it will make much difference. It depends on the specs that the hosting computer has. If you have enough RAM and a fairly good processor, it should run smoothly.

The laptop I used Bluestacks on ran well enough when I dedicated at least 4GB of RAM just for it. Emulation isn't perfect so you'll see some instabilities here and there. Running Android on a supported device will be a much better experience.

Not really sure. Personally I had one HP Chromebook from a few years ago that my company got for testing. It does whatever it was meant to do but ultimately, it was not enough as the Android interface back then was not good enough to convince Windows users to switch over.

All the Google apps worked fine for me. I tested with Microsoft Office apps and Google Drive. Web based apps ran good too but somehow, it just felt like a lot was lacking compared to Windows.

In the end, we just used it for Citrix Receiver to access a virtual Windows session.

One things for sure though, I did not experience any lag throughout my use of the Chromebook.

Better get Windows for safety and convenience .
Even the pc is spoil can take out hard disk and slap into another pc no file lose .

Android dont have adobe illustrator .

Can buy 1 for testing if you really want to try .