Although not commonly used, it seems the Swiss do not have such skepticism of high-value notes.
I would routinely pay for things (groceries, electronics, etc.) with 100CHF and 200CHF notes without the cashiers batting an eye, while I used the 1000CHF note once or twice for large purchases.
A Swiss friend of mine (who granted is a little old fashioned) said he would use them to pay bills for his business and would often use 10x 1000CHF notes for a monthly bill.
Another interesting point around the money laundering aspects, he was talking with one of the central bankers and it was now considered unpalatable to introduce any bigger sized notes. My friend's point was that when the 1000CHF note was introduced in the early 1900s, adjusting for inflation it was worth a lot lot more.
I would routinely pay for things (groceries, electronics, etc.) with 100CHF and 200CHF notes without the cashiers batting an eye, while I used the 1000CHF note once or twice for large purchases.