I have one that I got last year, I got the frame and 2 attachment bags, plus a meat bag for $290 from optics planet. I went back and forth between it and a MR pop-up 28, and decided on the HH due to the major flexibility of the system and the fact that the popup28 was somewhat new and not a lot of reviews and was worried about being able put a real heavy load on it. I've put 130 lbs of tile and mortar on the HH with no problem functionally, and 112lbs with a whole doe in bone in pieces in the meat bag. Whether the popup handles that kind of weight well I do not know.
The weight is by far it's biggest downfall. The 9.2lbs is if you have all the bags on at once, which realistically you'd probably never do. But 5.7lbs just for the daypack frame is still pretty heavy. The harness system is the next down fall, could easily be way more comfortable with a slightly different design. That said though it is a well made pack with a lifetime guarantee, the weight comes from it being overbuilt in a lot of ways, way heavier fabric than needed, etc.
I do like all the storage options, seems like I have a good spot for everything I need. I set the frame up with everything essential that I never want to be without, and with the meat bag can use that for about any normal all day hunt I do. The small bag I have set up as an 1-3 day overnight bag for warm weather with a trekking pole tent, small sleeping bag, pad, spare layer, puffy coat and stove/freeze dried meals. I like that I can remove that bag and still have a meat shelf and never have to take that stuff out of the pack to shed weight for pack outs. Really could get away with that for as many days as needed, just put food in the meat bag. For cold weather my sleeping bag is too big so have to use the big attachment bag. You strap about anything on it and it works well for hauling tree stands and shed antlers.
If they were to shed some weight on it and give a new harness system I'd recommend it all day. As is, I'd recommend trying to find one to try on, and the same with an MR, because in the end the most important part of the pack is how it rides, and while the HH isn't the worst, an MR is like a Cadillac in comparison in my opinion. You might be more than happy with how the HH rides for the money, but I think it's worth it to try it next to the MR and see for yourself.