Hi, I use as a only pedal the Zoom B1Xon, but I don't know if the Big muff effect is decent to record songs or play in live. Is It worth or should I buy the Big Muff Bass Deluxe?
Give it a try since you already have it. If you figure out it isn't doing what you want, then you look at your options. You'll get more fuzz recommendations here then you could ever act on.
The bass muff is crap. If you decide to buy a fuzz, get the new Green Russian Muff. It’s what the bass muff is based on essentially, but actually sounds good.
I find the tone uninspiring, it’s enormous, and it has a lot of features that you shouldn’t need if the fuzz was good to begin with.