Created an account just to reply to your post. I'm Scottish but lived in Milwaukee, Wisconsin through my husband's job. I never visited la Crosse, but since it wasn't a million miles away, some of my experiences may apply.
Like everywhere, there are nice parts and dodgy parts so she'll need to research areas to live etc and choose wisely.
When we were there the exchange was fab for our pound which is not the case now I believe.
Americans live to work andy husband worked ALOT of hours, compared with the UK, so that was a shock. His job had less benefits like holidays so that's something to be aware of
We were also hit with random and high medical costs (god bless the NHS).
The weather is extreme - boiling in the summer and cold as £&CK in the winter. That was a shock!
Some positives were that it was a really interesting place to live, lots of opportunities for fun road trips, people were just lovely in general.
I would say your daughter could have a really lovely experience living there but make sure she does all the right research and prep before she goes.