Benz Micros are excellent cartridges, but the MC Anna is something else!
The Anna does have more of a rise in treble output than most Ortofons, so shouldn’t sound too soft compared to a Benz. These tend to have a more pronounced lift in treble output so sone cartridges can initially seem a little dull sounding in direct comparison, but this shouldn’t be the case here.
I’d say go for it, depending on what turntable/arm you’re using. If it’s an RB-330 then the Anna might be a bit overkill!