I’ve had no issues with my Microbrute, it’s very rugged, in fact I’ve had more issues with my Sub 37 I hate to say (thankfully thats now addressed.)
I agree with the above comments on the Micro sounding better than the Mini, I bought the Minibrute and returned it within my return period back when it came out, I ended up getting the Microbrute about a year later. Maybe it’s cos when I got the Minibrute I was new to analog synthesis and didn’t have it long but I’m sure that’s not just the reason, there def seems something different about the Microbrute, not sure what it is, it just seems easier to get it’s sweet spots.