I tell anyone buying a swim spa... try it out.
We normally push wet testing... but swim spas are more important to try out in my opinion as you don't want to get it in your backyard and find out you hate the swim current.
Based on what I know about Coast, I'm sure it's well made, and as long as your dealer is good, I sure you'd be okay support wise. Again, swim in it. That should be your determining factor.