It actually is cooler than normal inside, which in my experience does in fact match the temperature of the larger European cathedrals. There are interesting architectural touches everywhere, from the classic upside-down-fishing-boat ceiling, to carved wooden seats and figures of Matthew, Mark, Luke and John that surround the lectern (is that the right term?).
The stained glass windows are a highlight (check out THAT pun!). And because the place is smaller, their colors glow through closer and have a more immediate effect. Much of this stained glass art is better than some of the older stuff, I think. It all depends on the artist no matter the era I guess, but I feel some others that I’ve seen were more focused on violence or were legalistic.
There are some colorful needlepoint cushions sewn by ladies of the church, and depicting native wildflowers. Why not make ordinary-use things beautiful? I liked experiencing this place. We got a local, personable tour from a church member.