Really enjoyed this, and will definitely be interested in seeing where this goes in the future. My favourite was probably the John route. Everyone so far has felt pretty much in character (though there's not been much to see of the non-Hiveswap trolls yet, obviously). Definitely has the potential for me to like it more than the official Pesterquest, though I can't really say at this early stage, of course. Spoilers + criticism below to not spoil for anyone who hasn't played:
I'm a little sad that the Joey route ended up being more about finding Joey and not so much about engaging with her and Xefros, but I concede that's just because I love Hiveswap so much and always want more Xefros and Joey stuff. The content that was there was enjoyable.
I'd also agree with the commenter below that the jokes about MSPAR's confused pronouns as the result of being a player-stand-in are getting a little tired as of Karkat's route. Unless Emespi is supposed to be foreshadowing the resolution of this, which IMO would be a bad idea since MSPAR is supposed to be a kind of blank slate for the player (I mean, the name alone conveys that...) and characterising them too much by giving them an entirely new identity including name and gender would go against that. If Emespi just serves to show the alternate timeline MSPAR and how things would go without player intervention that's fine and dandy and a cool resolution to the problem of "MSPAR has too many damn friends and they're all split across several planets and universes and points in time"