I use my Cintiq12 all the time, 2D, 3D. Everything I do, I complete much faster than I would with either paper/scanning/mouse or paper/scanning/tablet, or full-tablet.
Yeah, if you can afford it, get the 21.
I would be wary though about buying one from Ebay.
These Cintiq's have likely had slight changes over the years, and there would be a doubt about your 3 year warranty, believe me, if you spend the bucks, you dont want the thing to go >poof!< and not be able to send it into WACOM for covered repairs.
Mines a fairly recent production model, and I'm very pleased with its performance, the LCD is crisp. Heat? I don't find it that bad, I have this thing on my lap most of the time.
I would find going back to a pen-tablet very hard to do, I have deadlines and the cintiq lets me finish in ample time.
The one thing I do have a problem with, and this is not really a Cintiq-only problem. Is you will find you will need to turn off your monitor or assign the cintiq as primary depending on the software you use.
Manga Studio (3EX) and the 3D paint-room in Carrara 7 pro, works only if the cintiq is primary and secondary monitor is shut off.
Dogwaffle pro's sliderbars only show up in the primary monitor only, but will otherwise function properly.
So software compatibility has to extend to multiple monitors and LCD-tablet support.
Last edited by Magnatude; November 30th, 2009 at 03:29 PM.
Carrara 7 Pro, Anime Studio Pro 5.6, Hexagon 2.5, Zbrush 3.5, Project Dogwaffle Pro4, Manga Studio, trueSpace 7.6, Corel Draw X3 and WACOM Cintiq12WX user.