Well, I have more opinion than actual knowledge. Others here can probably give better advice.;)
For me, having had some upper arm problems and having really weak arms when my tendonitis and nerve problems flare up, I knew I needed a powered one. But, in the event TSHTF, I wanted to have a manual backup so the thing wouldn’t be useless. I opted for the Family Grain Mill - it’s $250 most places, including the hand crank. Which I haven’t tried yet.
Strangely, I found youtube to be a lot of help in picking a mill! There are videos on there showing them operating and some were so loud, I skipped considering those.
The Diamonte one on your link (I may have spelled it wrong) is just beautiful. I can see leaving some of those out all the time, especially in a rustic type kitchen.
BTW, I had to chuckle at your choice of a gift for your MIL. She must be pretty unique!
Thanks for some practical considerations.
I was actually looking at food mills for canning while I had her on the phone. She was looking for one for my SIL and was going to check out some antique/collectible type stores. I mentioned that I thought you could still buy them new and remembered the name Lehman’s for older type equipment. While there, decided to check out the grain mills.