So far, it's pretty great.
The Markbass is less than half the weight of my first combo amp from years ago. I haven't needed to move it any farther than from the car to the practice room, so far, but I feel less need to dread taking it "on the road" than any amp I owned before.
Sound is great. I usually play it almost "flat." Turning the "Low" knob to somewhere between 9:00-10:30-ish prevents muddy boominess.
40W is plenty. I can get more volume than required, with the Master and Gain not past 50%. P-bass volume knob at perhaps 75% max is about right. I have tried but don't routinely use the "Boost" or "Scoop" buttons.
I don't the miss having a tweeter. I'm not sure it was doing much for me on the SWR. Maybe it matters more if you're doing slapping & popping, which I haven't got into yet.
Still loving the top-mounted Aux In and Headphones Out jacks.
The one gripe I have with the CMB 101 so far is, the way the Aux In channel is handled. No gain or volume control. You get whatever the source puts out, at whatever volume it's at, plus inherent noise.
But, that's seemingly all 40W-class combo amps, including the Fender Rumble 40 I test-drove.
This means volume of a play-along track, for instance, is controlled by the source, which is not a bad thing in itself.
The problem is that you get ALL the noise present on that aux audio source, even when it's "muted," and it's amplified as much as everything else.
My workaround so far is, using a Bluetooth receiver plugged into the Aux In jack. That BT receiver bridges to the BT on my desktop PC, which is where I play the Hal Leonard etc. play-along tracks, and online metronome from Studybass.com (used during truly quiet-to-others, headphones practice). This "air gap" solution isn't perfect, as the BT receiver has its own inherent noise, but it's load better than what I was getting from the PC's line-out or headphones jacks.
Unfortunately I am not a qualified mental health professional...