I don't recall seeing this arrangement before, normally I always see the washer on the left side. Is there such a thing as a 'preferred' side?
I'm considering getting a front-loading washer, but most seem to be designed to be on the left side. Is it practical to have the connections moved? I imagine it would require tearing up the entire wall. Drain line is accessable in the crawl space below, but the water pipes are not.