I was able to shoot about 250 rounds with the Holosun HS512C today.
They advertise as being paralax free. It does have amazing ranges with no paralax. I think there is a touch of parallax at the extreme edges, but not enough to cause an issue. And one of the most parallax free scopes I have shot. It is absolute co-witness with the integrated mount. It came sighted in at 25 yards. The solar assist is a novel idea that works well indoors or in shade. The reticle becomes nuclear bright in bright sunlight, and can wash out targets from 50 - 100 yards out. I placed my hand over the solar panel and it made the reticle much easier to see the target down range. I then turned the solar off, and re-sighted it for 50/200 yards zero that I prefer.
What I liked, when shooting man sized targets varied in ranges from 10 - 50 yards it was extremely easy to hit center mass shots and head shots. Metal plates I was consistent and accurate. The reticle is similar to the Eotech 512, with a 65 MAO circle with a 2 MOA dot. This combination excels in CQB situations, at least for me.
It is extremely fast to get on target.
All in all, the Holosun HS512C seems to be a solid option for a Reflex Prism, with it's huge eye box, very clear glass, and especially if you want a multiple reticle options, you can have either 65 MOA circle, 2 MOA red dot, or 60 MAO circle and red dot. Shake Awake is also nice. At roughly half the cost of a Aimpoint, makes it a solid option. Holosun packed a ton of features into the HS512C, at 8.1 oz. it is fairly light.
I am not going to say it is combat proven like Aimpoints, Trijicons, and Eotechs, but a solid option in a decent price point.
Oh, and it is drop proof, I pulled a big piece of stupid, and knocked my AR off the stand I was using, it hit the concrete right on the upper left corner of the sight.

It held zero, but it has it's first battle damage with a little nick where the paint is now missing.