Pen input device for commenting & drawing in Acrobat

My engineer client is looking to replace paper commenting & drawing mark ups with digital replacement.

They're considering marking up a pdf. But, using a mouse to draw in Acrobat is a pain. So, I think a good solution would be a digital pen and or tablet.

Maybe something like this: XP-PEN Deco 01 V2 10x6.25 Inch Digital Graphics Drawing Tablet Drawing Pen Tablet

If you've experienced using any pen/tablet input devices or have anything useful to say about it, I'd appreciate your comments - hardware brand, pros, cons, etc.