United Airlines, the not so friendly skies airline!

My Eugene/Ottawa flight was for 4/24/2017 approx 6pm. I live in Bandon Oregon 3 hr away. Arrived at 3:30 pm and told that my flight was cancelled, the customer service person said that emails were sent and I was advised about the cancellation. No such alert was given, I checked my email, tablet and cell phone. I spoke to others going on the same flight and they were not advised either. The customer service person automatically booked me on the next flight which was 5am the next day. I was told to arrive early which meant 3am which meant staying overnight at the terminal. I was not offered anything for my inconvenience because it was weather related. They also said that they have had fog issues for over a week. I did not believe them because with all the highly sensitive equipment that it should not be a factor. I suspect underbooking or perhaps they sold the runway use to another flight. When they knew of the problem all week, why not advise the passengers?? I ended up 9 hours late in Ottawa, I missed family members that I rarely see. I wrote and asked for compensation for a one way ticket to Ottawa for their screw up. They offered me $100 voucher for a flight booked with United. Not much of a compensation when I normally book with expedia and United normally is more expensive, so in reality they gave me nothing. I used to not believe the things written about United, now I believe how bad they treat their clients. So, I would suggest not flying the unfriendly skies with United. They will treat you like garbage!