Roberta's place is excellent and she is a brilliant AirBnb host! We were made to feel immediately welcome and got a little tour of the neighbourhood right after arrival. Sempione has a load of cool restaurants and bars, but Roberta pointed out the places we really shouldn't miss and introduced us to the owners of them - I thought this was a really nice touch. It's close to transit too so you can get into central Milan really easily.
We didn't have any issues through the stay but the couple of questions we did have we WhatsApped Roberta and she responded immediately
10/10 host and location - definitely worth considering if you're visiting Milan!