It's fun, and is consistently getting new content released in terms of both books and minis (content from Appalachia/Fallout 76 is up next).
There are a few differences between it and DnD but I'd say the huge ones are the dice system and checks. The game uses Modiphius's 2d20 dice system, which means you are rolling multiple d20s at a time depending on difficulty scale of the check, and trying to score the lowest possible number to succeed. Checks combine your relevant stats, and you want to roll under that number. So the more you invest in a stat you have a bigger buffer between success and failure.
