I was at opening day as well, but I didn't enjoy it as much. Patriot was running one train all day and for some reason I decided to wait 2 hours for it. Although, Prowler's crew made up for Patriot's. I was able to get two rides in under half an hour, and they were moving the trains through surprisingly fast. The staff were typical - not really happy or thrilled to be serving the guests, but that's not any different than before.
SteelHawk fits well with the rest of the park to be honest. I always thought the tower would stand out, and it does, but in a better way than I originally imagined. I figured it would make the other attractions seem puny, but it doesn't appear to be much larger than Mamba or Detonator. I also liked how you could see it from literally anywhere in the park!
I'm excited for its opening day. It should be a solid fit.