guitar synths

I found an Aria Pro 2 guitar with a Roland Pickup, and the GR-33 synth - I've panned the room sound to one channel and the synth to the other. Not really sure on this one, but I think it dates to the late 90s, and has a truly uninspiring set of very odd sounds.

can anyone give me some input on this?
how realistic is it? i would like to hear a recording of the synth being used. i am thinking, you could make the midi sound less fake by Micing the speakers.

people get angry with me when i say midi sounds fake (i dont know why... I'm assuming its my ignorance,) so i dont mean to offend anybody 8)

Under 600 dollars. I've only seen the virtual guitarist as an option for midi guitar. Can anyone recommend others?
I want to sound like Tool/metallica/ac/dc, metal sound
Thanks

I’m looking at the Roland GR-33 and I want to buy it. Can you guys give me some feedback on how good or bad the unit is, and the quality of sounds.. Thank a lot.

ZEFF