Well first off, the distortion models sounds great especially ED model, better than what the microcube offers, and don't forget that the high sampling rate of the zoom g1 too.
Effects, unmatched. Microcube only has a fixed few sets of effects compared to the zoom g1.
Price wise, zoom g1 is way cheaper. rm 220 after discount for me, and my microcube costs me rm 430.
I paid rm 210 for the marshall MS-4 micro amp stack, that's a piece of junk compared to what zoom G1 offers me.
Zoom G1 has a noise gate built in as well, and also a compressor. It also has a harmonizer, which the microcube doesn't have. If you play around with the settings enough you can easily make it sound better than the microcube which is too plain and not much settings to play with.
If one wants to be a beginning electric guitarist without spending so much money on amp, effects, and the likes, all you need is the Zoom G1 and an electric guitar.
No need tuners even, zoom g1 has it all.
If you don't want to listen through headphones/earphones (it's quite good, better than what microcube's headphones out offers) you can always connect it to a pair of cheap high wattage speakers, and if you're a computer owner you should already have one, or you could get some cheap cables and plug it into your TV/stereo system.
I plugged my rgr321ex through the zoom g1 and I love the humbucker's output, very nice distortion and sustain.
Zoom G1's output is in STEREO. It's much better than the microcube's fully mono output.
Zoom also lets you modify the EQ, got low/mid/high settings.
24 bit 96khz sampling, beat that Microcube.
Ah I see...well actually I would like to know more on the amp modelling instead of the other effects as I also have a microcube myself, but thanks anyway. Just curious about how the COSM amp modelling stacks up against zoom's offering.
Honestly, the stereo output isn't much of a big deal (to me at least)...its just for the ping-pong delay and reverbs...and according to Roland's site, the microcube has a stereo line/headphone out.