I think that metroidvania are a really good category of games, they are one of my favorites, but the video game needs to be well polished, lately there are many metroidvania and it seems that they do not put enough effort into them, this is something that I notice a lot about Vigil : The Longest Night according to what you explain.
It looks like a great game! But it does have many things to improve.
It's probably pretty damn difficult to make a perfect game and then there are always going to be various people that still don't like it. Vigil is ok, I would say it is slightly above average for a small studio and is worth a look for fans of the genre.
I'm a big fan of the genre, I'll definitely try Vigil sometime in the future!
if you can get it for free or near free then i say go for it. If you have to pay more than $10 i don't think it is worth it