Go for it, you're just what that washer needs.
Besides you know you want it! *LOL*
Hardly used could mean someone got it to North America, found it didn't operate well on 60hz power and thus it has sat sitting ever since.
To best of my knowledge Miele North America (USA and Canada at least) only began importing with the W770 washer and matching dryer. Then came W1065/W1070 models, all of which obviously are younger than machine pictured above.
We both have AEG Lavamat washers that somehow made it across the pond but otherwise were never sold in North America. In fact we also both have ironers and other goodies that came from Europe, so what's another washer? *LOL*
Contact Miele Canada in morning to see if they can give any information on washer. Things like if it ever was sold in North America, technical specs, etc..
You want to find out if this washer is 50hz/60hz or 50hz only. That and if it is bothered by running on 60hz.
The AEG Lavamat I lost out on was older than this machine, or maybe same age, but owner claimed his ex-wife used it all the time and it wasn't bothered by frequency difference.
Unlike modern Electrolux AEG washers there likely isn't a pesky motherboard in this washer refusing to let it operate if it senses incorrect frequency.
Worse that can happen is timer, motor and maybe some other bits would run 10% faster on 60hz power.