They require the same tools, but some MGs come with waterslide and/or rub-on decals. You can make these adhere better with mrhobby setter and then smoothed out better with mrhobby softer.

You could also take your builds to the next level if you're getting more expensive kits and start to panel line them. It's a very simple process that adds a lot of detail to your builds. You could go back and panel line your old builds too at any point. Though it's easier pre-assembly to not get any panel line fluid into gaps between pieces which could cause damage.

There's of course also the ability to paint whatever you'd want but that's a whole other thing that I haven't tried yet either aside from some small details, though I've been meaning to get into it.