Feature:
Off the shelf CD burner works. It's like getting an MRS-1266CD for the price of the non-cd model. (burners are under $50 bucks at computer stores...yes most simple burners will work in the 1266) Perfect for the guitarist, with lots of easily customizable effects. You can go wrong in this price range. I paid $850 after adding a 3rd party CD burner and the optional USB card for computer interface.

Quality:
Solid construction, no problems.

Value:
Best value. I could spend about the same on a used Roland VS, but hte CD is external, and then again, it must be compatible (few are with the Roland) Plus, Roland isn't nearly as easy to use.

Sound:
Perfect digital clarity. just like the rest of em out there.

Support:
Have'n't needed support yet. (knock on wood)

Overall:
Overall, I am THRILLED. I've had it only a week and already I've written and burned 2 songs to cd--using the drum machine and bass machine! And they sound good too!

I have the MRS-1044, and I LOVE it, which is why I want the 1266. The features and quality are just plain unbeatable for the price, no kidding. The main feature I want is the drum set mixer, because although I don't have to use the built in drums on my 1044 (I have a synth with drums but I do like the variety),when I do, I find that the hi-hats are too loud relative to the rest of the kits in most cases. Being able to balance the kit on board is a great feature. A few more tracks won't hurt either, and though for my personal work I don't need any more than two simutaneous inputs to record from, having the six will provide flexibility I know I'll soon find a way to take advantage of. If nothing else it'll keep me from having to swap patch around.
Based on the quality and features of the MRS-1044, I seriously doubt you can go wrong buying the MRS-1266