The HX is awesome, no doubt. But since I have the handful of Alexander’s that I already like, it seems somewhat redundant in terms of the delay, reverb, and modulation effects. But the convenience factor of even just all the utility effects like eqs, comps, boosts, IR loader, etc. even makes the price worth it. Especially when they’re like $400 used these days.I would just wait, the Amp X is out probably around November at the earliest based on when the Amp 1 models were released, more likely only around NAMM 2021 in January since it's a more complicated unit. I have no doubts it will be a great device, Blug knows his stuff.
You could consider the Line6 HX Effects to pair with the Iridium. It would do the MIDI controller stuff and has tons of good fx while being about the same size as the Iridium. Owning a Helix Floor is why I am having some second thoughts about the Amp X, I feel like I have most of what it offers already.