I had this Amp for over a year now and it beat the Roland Cube Street and the VOX Mini 5 in my direct comparison. I am using it as my main protable amp every week, most of the time with electric guitars. Pros: Sound: The sound is clear and crsip (not as digital or boxy as the Cube and the Mini). The AC-40 works well with pedals. I have used all kind of pedals in front (mostly the TrueTone series by Harley Benton) and it never dissappointed. Reverb: Both inputs have geat Reverb. You can go for great hall here, the Roland and the VOX don't sound as big. Cons: Noise: Yes, it does hiss (at 30db or the volume of a whisper). Even if all knobs are at 0. But as soon as you play that's gone. It changes to a zing in the the higher regions (5-9) and is gone back to a background hiss at 10. Peaks at 7 with 42db (45db would be a quiet flat) sounding like a misstuned radio. But despite all that it is very quiet. Not silent, but quiet. Feedback: If you get really close, feedback can occur. Weight: Heavy for it's size the amp ways in at 8kg. 2kg of that is the battery, which is a 12V lead battery. At least its sealed. So, no spill hazard as written in the manual. Options: 1 AUX IN, 3-Band EQ for guitar, 3 FX for guitar, 1 FX for microphone. No headset plug! Conclusion: You might say there are more cons then pros. But I kept this one because of the clear and open sound and because it accepts pedals that nicely.