good for electric? The Roland AC-60 looks awesome
if you are playing Clean only i think it would sound usable for practice, but anything other than clean i can imagine it would sound horrible.
no they usually sound shit with an electric,
Electric Guitar amps have a very narrow frequency response, with certain parts of the range boosted. Acoustic amps are higher fidelity, and aren't tailored like electric guitar amps to give the typical rock guitar sound.