Anyway review time, cuz itch review system is broken. I might be a bit biased, but this is genuinely one of the most fun games I've played in a while.
The gameplay is similar to games like Hollow Knight or Dust an Elysian Tail (don't tell Maddi I mentioned Dust), featuring DMC-like style mechanics. Even though, truthfully, some edges of it are still rough, it's still a great experience. Controls are well put together, enemies are responsive and challenging (doubly so for the bosses), the skills and combos add a lot of depth to the learning curve. My only complaint would be the blocky level design, but that's whatever.
Act 1 is not super long. It will probably take about 4-6 hours on your first playthrough, depending on how bad you are how quickly you can learn the mechanics. Current speedrun time is about 40 minutes, if that helps. Then there's also the Reaper difficulty, but we don't talk about that.
Story and worldbuilding so far are very intriguing, and I adore the main cast and their banter. Following acts promise more insight into the Nest and other reapers so that's something I'm hyped for. Too bad they'll probably release about the same time as Silksong or JA's Witcher 3 video.
The music and art are probably the strongest parts of the game, honestly. Each stage has its own soundtrack in two variants, for exploration and for combat, and each one rocks. Same goes for the art. The game exudes its own unique style, especially so in enemy and character design. Just look at Blucher's portraits.
And do keep in mind, all of the above was made by just one person (sans for the cutscene art).