I've followed the HTP-1 Owners thread at AVS pretty much since day 1. For the least expensive of a majority of that list up top, it seems to stand up to all but maybe the Storm, Lyngdorf and Trinnov.
The JBL / Arcam / AudioControl are based on the same architecture and at least the JBL and Arcam have been buggy.
The Anthems started off buggy with the 70, but people say it is mostly working now. I've heard that the 90 is available, but last I saw, many places haven't announced it as available yet. Who can really say if a few upgraded internals and 4 discrete Subwoofer outputs is really worth the ticket?
Keep in mind the SDP 58 from JBL should be out soon too. This could be intriguing if it works.
The HTP-1 owners all seem to agree that if they were to replace theirs, the only way to go would be Trinnov and Lyngdorf.
But for some of us...
that ticket is completely unrealistic.
The Custom GUI designed for the HTP-1 by PinkSoda adds a lot of value and usability features that many users appreciate and value. To the extent I've seen some say it makes the HTP-1 compete with $10K units. *Shrugs
For something that is 95% of the way there, I think the Monolith is the way most people can access the Super-processor market successfully... once they get units available again.
For the rest, it still seems a crap shoot.