I have been playing this game for a long time, and it is definetely my favourite Minetest game. This game is actually challenging, and finally figuring out how to do something is extremely rewarding. Exile also features some very smart design choices: for example, sticks here are not just an item used in crafts that clogs up your inventory like in MTG - they are also an important traversal tool that you might want to have on you most of the time. I could provide many more examples of such decision.
That said, it is not perfect - some mechanics could use to be more clear, and there is not much to do after you have acquired everything - the game stops feeling like a challenge. Performance is also not that great on weaker computers due to all the dynamic nature. However, this game is in active development, and many things probably will improve.
Overall, this is an extremely good game, among the best in Minetest.