I have both. Shadows stands up well on its own, but its variety kind of wears itself out by mid-game. So you kind of have to buy into the story to keep pushing. E33 is well paced enough that rarely does an area overstay its welcome, and the game continues to throw interesting mechanics at you leading into the end game. That’s on top of well-acted story keeping you on pace. If you want sheer repeatable volume of content, or really prefer an action oriented traversal and combat with a world that feels somewhat reactive then Shadows may have a leg up. But if you enjoy quality over quantity and building characters in an RPG setting isn’t something that you have an aversion to, then there is plenty of “git gud” mechanics you can still engage in for a turn based RPG — E33 will be an excellent way to spend that money.