I work in a rural setting but in a very busy hospital with an adjoining surgical center that is also hopping. We get a lot of traumas and have a large number of elective surgeries daily.
When I was at the county hospital for my CRNA residency, I felt the same as I do now. The setting did not matter in that respect.
The part of the country perhaps does matter. I did part of my residency in Texas which was the worst experience of my anesthesia career so far to date. I hope to never again practice there. There was something so hostile about the majority of the CRNA's and MDA's. The worst part was that the OR nurses were the meanest people I think I had ever met in my life.
I was in Ohio for another part of residency. It was a large teaching hospital. That was a decent experience too, like in my primary residency site.
So, I have only really worked at 4 places (1 as a professional out of school). But I did see the way CRNA's can be treated in several environments.
Generally, if you are working in a practice with MDA's, they will be "supervising" you. Some will hover over your every move. Others will allow you to practice anesthesia. Sometimes, until they get to know what you are capable of, they will stay close by. And they have every right to be there. It really all depends on the people involved and the experience level with anesthesia and as a supervisory role.
I work in a practice that I have a lot of autonomy. My MDA's work with the CRNA's like a true team. There is mutual respect and a lot of teaching between both disciplines. Perhaps since I am in a small practice, it forces us to be more informal and respectful than if we were in a large practice and never spoke to each other but once a month.
There are no guarantees. People will be people. People react differently to other people. But you will find the right place for yourself when you are ready to find your first job out of school.
The most important bit of advice that I can give is to stay humble. You may know a lot, but there is always more to learn and there is always someone else who knows tons more than you. Listen to what your teachers have to say. It may be something you already know and have done a million times over. Just say "thank you". Being humble will get you through the rough times with any surgeon or any MDA/OR nurse/CRNA that is trying to provoke you. It lets you step away thanking them for the insight, so that it does not cloud your learning with anger (plus you do not want to be like them when you get out of school). It is sometimes hard to bite your tongue, but it was an invaluable lesson one of my friends who was a year ahead of me in school told me and I still use it. It was great advice for me since I am direct and assertive. I did not want to come across as overly confident. I am sure I still did to some while I was a student. But anyone who has worked with me long enough and knows me, knows that I am the first to step forward with my weaknesses.
Anyway, I am just rambling on. I hope this info helps you. Good luck!