Personally I feel like his progress is really good, he consistently posts update news every month, never goes awol for months on end while still accepting people's money.
Not just does he post update news but he posts his side content as well, the animated defeat scenes of the other characters. He also posts new content updates once every month or every other month. Longest I think I've seen for Hounds of Meteor is 3 month gap between content updates but that update was a massive one
Adding the combat scene, adding an additional game over and two new h-scenes (if I counted the content right) is a substantial update to do in one month time in my eyes and sure. If this was like the only update we get after 3-6 months I would be very disappointed.
But considering we got a great update last month, month before, month before. And consistently on a monthly or bimonthly basis since this project launched. I call that damn impressive and if you look at how big this h-game already is, you are talking hours of playtime to see all content if you start a new game
Contrast this with other 3D games (yes I know this is a 2D sidescroller, but the visuals are all using 3D animations and 3D character models, even the CG scenes are) and so far Hounds of Meteor is the ONLY 3D game on F95 that gets consistent updates and has actually progressed substantially content wise since launch.
Contrast this with the likes of
Too Much Light /
Pure Onyx /
Breed Laboratory which while all quality games with quality gameplay, haven't seen all that much content since they were first launched quite some time ago
Only ones I'm aware of that have seen as good progress as Hounds of Meteor are
Threshold Road and
The Last Barbarian
There are a few others I've not mentioned or forgotten about but I think you all catch my drift.