I've owned lots of combo amps over the years. Most, I'd have to say, were pretty decent for what they were. It's easy to go hating on combo amps, because most players have unrealistic expectations of what it can do. You have to remember, generally speaking, the box for the speaker is usually too small for the speaker itself, and power is usually pretty short. But, as a practice tool, most of them do a fairly good job. When you expect a little 100 watt 1x15 combo to keep up with drums, and guitars, you always lose. Just the same, you've gotta start somewhere, right. So, the worst I've ever had was an Ampeg BA210SP. Crappy effects patches, and for a 220 watt 2x10, not much good clean volume. Otoh, their B100R is fantastic, and my current BA112 is an awesome little practice amp. Then there's the Mesa Walkabout Scout. Absolutely astonishing how good it sounds. All combo amps should be that good, then we wouldn't have this here thread.