I've shot it. It didn't seem as smooth as the HTR to me. I'd buy the Halon or the HTR before I would buy the HTX. My two cents anyway....
The HTX draws the same as the HTR to me. Difference is the ATA and the HTX is a little faster if that matters to you. I do not mind the shorter ATA coming from a Z7Extreme. My son went from a Z7Magnum to the HTR. He liked the longer ATA of the HTR better than the HTX. Both are great bows. If possible shoot both and decide. I bought the HTX and couldn't be happier.