Good Supplemental Pedal
Not really going for a review that would be competitive with the blogs, review websites and magazines out there. Thought that maybe a go rundown if how I use this pedal might provide some answers/inspiration for the folks who are on the fence about a product like this.
I have been, like lots of people, looking for a great tone that cuts through a mix in a variety of situations and also provides a unique clarity that becomes/fits with, "your sound". This sounds like you, read on.
The MS60b Pedal, in my humble opinion, is not going to give you your "it" sound all by itself. It's a great pedal, but needs help. This is all pretty subjective, so, again, just what I think and what has worked for me.
My board has a good compressor on it. There are plenty of compressor models right inside the MS60b, but they're just so-so. I like that tight, punchy, sustainy, feel, and a real compressor pedal like an M87, Pigtronix, EBS, etc. is going to be the way to give you the latitude to dial in what you need. I have a Bass Station compressor by the way and think it's the bomb. None of the models in the MS60b have the headroom/variety of adjustment a stand alone provides. If compression isn't your thing, something else probably will be. Whatever that is, you should get a real version of that key piece to your tone and use the MS60b to complement it. I know guys that really won't settle for anything less that a Big Muff Pi because that's the center of their sound universe. Yes, there's a Muff model in the MS60b, but just doesn't compare the genuine article. The model is decent, but not an exact equal.
I really dig a touch of the SVT in my sound and use the SVT amp model in the MS60b to get that. there's speaker emulation as well. You can opt for no amp speaker, 4x10's, 1x18's and a few others. For what I do this works pretty well: Tuner, Pigtronix Bass Station (which has an FX loop) MS60b in the fx loop with a stand alone bass EQ and done. You would really be surprises the variety of tone you can get with that little setup. - Honestly they have a pretty decent little bass EQ built into the MS60b. If I didn't have one already I probably would have skipped that. On the MS60b itself, I have the SVT with 12" cab sim dialed up, and that's all I use it for. It's kinda the icing on the cake. Turn it off and you can really feel the difference. It just rounds things out.
If you playing style/equipment preference is closer to the bass-cord-amp style player, the MS60b might be all you need. It's got a great little tuner that can even do the B string on my 5-er no prob. Some might think, hey I get a really top notch tuner for $100 and then all this other stuff is bonus...
All in all, it's a great little utility pedal. It has a permanent home on my board and is always on as described above. I've experimented with some of the synth, octave, chorus, etc, and they work pretty well but consider them to be more of a supplemental layer kinda thing. One nice thing about owning one of these. If you end up in a situation that is a little out of your equipment's wheel house, the stuff included with this pedal will probably get you by in a pinch.