A lot of folks around here have owned or DO own all the major stuff.
The Headrush stuff does not outright suck and can get some good results in the right hands; BUT their stuff is simply on a lower tier of quality/value than almost all their competition. They’re hard to recommend to new buyer if you have a lot of experience with this stuff and I think its fair to warn off newbs who might be attracted to an inferior product because it is highly available (GC carries it) and looks comparable while not actually being as good over the long haul.
IMHO. YMMV.
Pretty well stated as someone who plays alongside and tweaks a Headrush Core owner's rig every other week or so. It's a fine offering, but objectively is less capable, has less development behind it running on less powerful hardware with a much less robust record of support than pretty much all of the major players.
None of that matters to a few of the guys I play with. That's perfectly fine too. But it's not "hating" to be aware of and point these things out.
My friends don't care and I don't bother them about it - we're too busy making and performing music we all like.