import vs domestic really doesn't make any difference. I've owned lots of both. Generally imports are EASIER to work on, at least in my experience. Domestics do some really dumb things when it comes to common stuff to work on, the engineers who design it never actually do the work. (union laws prevent them from actually turning a wrench and seeing how their design works!)
Anyway, nevermind that above! The oil filter is simple to change, easier than any other vehicle you have owned. There is just a container up on top the engine that holds the filter. Screw the top off, remove the old cartridge, and drop in the new one. They are a little expensive though ($11 IIRC), and only available at a dealership.
As far as oil, 5w-30 is fine. Almost every single vehicle that specs 5w-20 doesn't actually NEED 20, it was done to increase the mileage at the possible expense of engine longevity. As long as it makes it past the warranty interval, the mfg is good to go. Mileage goals are tough to hit though, and every bit helps.