I'm looking for a new amp. This will be my second amp, my first being a little squier practice amp, so i don't know much about the subject. I was looking at musicians friend, and since i don't have much money, a cheap rogue amp cought my eye. It is a RB-120BT combo, and it's 120 watts, and has a 15 inch speaker. it is $199. Is this a good amp, and if not, could you please suggest one of simalar size and power that is?