I own the HW44 and have for some time. I will say a couple things. Fastastically accurate. But to say they hired an ergonomics specialist to design the grip, Ummm maybe for some people but it is too small for my hands and very uncomfortable because the ergonomics specialist did not take into account that people come in different sizes.
The Ballistic polymer leaves me wanting to me looks like a toy gun, not impressed with the material at all and if you remove the grip it is hollow inside.
Pick up any Brocock like an Atomic and you will instantly feel the HW cut corners on material.
If the Atomic was priced better I would be all in on it.
Again fantastic accuracy, but I am considering the Manul because of some of the shortcomings of the HW.