I may not be of help, but why not look at their newest device Wacom MobileStudio Pro. it's basically the newer version of companion and it has like 8000 level of pressure (cintiq companion has 2048)
It's not out yet, and considering the fact that the Cintiq Companion 2 is already $3000, I'm willing to bet that the MobileStudio Pro won't be any cheaper either.
Also, 8000 levels of pressure? There's a point where people don't even start to notice the difference (like the difference between HQ music and HQ Flac format music - not a lot of people can actually tell, the difference has to be SUBSTANTIAL to notice). The pressure sensitivity that's offered with the Intuos Pro and Cintiqs (I believe 1024 - 2048?) is the standard and more than enough - it's not like pressure sensitivity determines the quality of the art (though it does help for accuracy, it isn't the sole factor in the overall quality of the tablet tool).
Unless OP is a master of their industry and needs a computer that's capable of being a rendering farm for Disney, even a Cintiq HD would be enough for them.
I'm pretty sure I'm one of (if not the only) people who uses a Cintiq Companion 2. Considering I've talked about it tons of times before, I'll make it quick and simple.
Pros:
It's a computer. Literally a computer. Better than the Cintiq Companion 1 because that one was just like an Android phone/tablet that could draw. On the Cintiq Companion 2, anything you can do on Windows, you can do on the tablet, within the capabilities of the hardware (if you get the "standard" model that most people opt for, I believe it has 256 GB of harddrive space and runs on an Intel i7 processor.
Mobile, so if you're on the go or draw at work a lot (like I do during my lunch breaks), pretty good. Otherwise you'll end up with it on your desk a lot which is fine too. If you're looking to replace your actual computer, by all means (that was the situation I was in when I got it - my laptop's charging port had fried, declaring it dead :< )
Has a tooooon of buttons to use for shortcut commands. 10 buttons AND a radial menu with more options for shortcut commands. Great if you have to work somewhere without a keyboard.
Great screen resolution, 2k I believe.
Cons:
Not compatible with Mac, so if you try and hook it up to a Mac it's not gonna work. Not a big issue for me because fuck Mac lol but if you typically use the Mac iOS then it might be a dealbreaker for you. Runs off Windows 8 by default I believe (unless they've updated them to have Windows 10, I dunno, I got mine back when the Windows 10 for free deal was still going on).
Touch screen. Fuck the touch screen. I keep it off 95% of the time. It gets in my way and considering the complexity of the monitor (you've got the taskbar, open windows, everything you'd have on a normal computer crammed onto a tablet screen) I always end up accidentally closing out of shit and it actually drives me mad. If they made a model without the touch functions, I'd be on that shit so fast, but they don't so . . . /sigh If you end up getting a Cintiq HD or a tablet that's OPTIONAL with touch, don't get it. It's extra fluff for extra cost that doesn't contribute to the work flow in the slightest and just interferes when you try to do so.
Because of its large resolution, some drawing programs load with very small tool icons (I'm looking at you Photoshop) but honestly I've gotten used to it just fine and continued to use the drawing programs with no issue whatsoever (I use Clip Studio Paint anyway).
Expensive. Don't buy it unless you're willing to drop a few grand. It's even more expensive if you have to buy it from a distributor, which everyone who doesn't live in the States has to do (aka me).
Overall, if the pros are enough for you, and you have the money and the means, go right ahead, I'd totes recommend it. But if you have a functioning computer already and the workspace area for it, just get a Cintiq HD tablet that will suit your needs (there are a LOT of different models for them ranging in size, usability, and resolution). Pressure sensitivities are both the same (though some of them might be lower) but this really doesn't make that much of a difference - that's why we have brush size options 
