Cassp, I'm assuming you mean the Zoom MRT-3. I actually have both models. The Zoom MRT-3 is a good drum machine. It has good quality samples, with large pads. The set backs to it are absolutely no effects, The kits even though sounding good, can be a bit dry do to lack of effects. The patterns cannot be performed in the mannor as they are on the DR-3 (meaning triggering pattern variations and fills like on an arranger keyboard). Display is baisc LED, and can get confusing when chaining patterns if you don't play close attention to pattern location.

I've played the Alesis, and I think it's pretty good drum machine, but as many have stated in the reviews the drum sounds are a bit dated and reverb on several kits is too harsh. In my opinion in terms of sound quality and ease of use the Boss DR-3 is much easier to use and program.

I think drum machines make a great addition to any keyboard. Here's why....., A keyboard workstation is designed to do all areas which means it can lack in others while excelling in some. With a drum machine and bass machine, you get a unit designed specifically for that alone, and they're typically designed well, and the preset styles are typically quite good.

SemiLiveMusic, I can't recall the exact new model number of this Zoom. From what I saw it was an improved version of the RT-123. I'll find it and post the link for you.

Squeak