Hey I like dated. I've got a 70's early 80's motif going on in my place. My parents are selling their house right now and they still had the original orange shag carpet in the basement from when the house was built in 75. I frickin lost it on them when they told me they hucked it out, I was gonna transplant that entire thing into my place.
The only thing that strikes me as awfully dated are the few low-quality items sprinkled around like the particle board furniture in the office. The bathroom weave basket can go, too. Ok, and I'd maybe replace that ugly painting.
I wouldn't touch that kitchen. Or the living room chairs, shag rug, and leather couch. Those can stay.
lol... again... was not referring to the architecture. I'd love the house, but would definitely be replacing cabinets, appliances, flooring, walls need painting when I remove those wood walls. Would keep the pot lights though.
The most attractive part of this house is it would be an easy gut, no walls. First thing that needs to go is the baseboard heating. It is in Chicago (?) and winters with those windows and baseboards would be cold! You would need all new hvac and most likely drop the ceiling to hide it all, which might be a problem because of the heights of the windows. The other thing that needs to go is the curtains. If I was spending 1.5 mil I would update it with bad ass blinds that you can hide, go up/down, sideways etc.