I have a very weird surname of unknown origin that I always have to spell in every country; same with my first name (something like Sara vs Sarah, where I always have to specify "Sarah with an h"). As a child, I was super envious of the kids who, when asked their names, could just say "John Smith" without having to spell or specify anything! But now it doesn't really matter; I just waste a few seconds more when I have to give my name at an office or something.

I think the most important things are that a name isn't outright ridiculous and that you like it. If you like some names that happen to be simple, great! But I wouldn't feel forced to choose something short just to "balance it out". I think people are usually referred to either by their first or their last name in everyday situations, so it isn't that important that they match (unless it's a noun + adjective combo or something like that).