Like I said, I have no reason to be biased. I made no bad experience with the MiniBrute I used to own.
As for demos: Those are always hugely dependent on who's doing them and his or her stylistic preferences. It's a bit like that with presets as well. Many people, for example, complained about the Prophet '08s presets and how they would all sound awful, outdated, and generally showed that the synth was not good at anything in particular when compared to a VST. Now, as we all know that was obviously bollocks (whether one liked its particular sound character or not), but in this case the first impression via the presets also didn't work towards the synth's advantage. As usual, nothing has really changed in how a synth should be approached in order to find out if it's for you: try one out in person. Just because YouTube and SoundCloud exist doesn't mean that these media can be substitutes.