I used this amp for over 2 months.
Let me save you some time. Just buy this amp, you're not going to find anything better for this price.
It sounds very good and it's super loud for a 40 watt amp. 80 watts is the output for your external speakers. This amp itself only plays 40 watts, but it's plenty enough.
I use it for band practices. Sometimes with an overdrive pedal. We play in a small room with a guitarist, vocalist and a full loud ass drum kit. I only turn this amp's volume to 50% and everyone is able to hear me very clearly and loudly.
DISCLAIMER! I don't think you should buy it if you are not going to play loudly. It is not suitable for playing at home with neighbors around. It produces a buzzing sound even when you completely mute your bass. It can get annoying if you play quietly. But at loud volumes, it simply fades between the bass sound. Also, it's very heavy! But other than that, it is absolutely worth your money. Good sound quality, well built, very loud.