Tracks excellent! Clarity on these newer optics is on par with the high end stuff of years past, imo. The reticle is one of my favorites and the 44mm obj. Really fits guns with a smaller profile. The 50's look better on like a sendero profile. I don't notice any difference between the 44 and 50 as far as light transmission. You get 1/4moa elevation (hs-lr is 1/2moa) and a zero stop. Windage is exposed 1/4moa which for a hunting rifle I'm not overly fond of. Again clarity is excellent and I've shot to 890 with mine. It's good enough for hunting but that distance is starting to push the max of the 16x for really precision work. I prefer it over the pst because of it doesn't have that awful illum adjustment in the way. Saves a little weight too.
As was mentioned you are getting a lot of features at the price point. A better reticle and better elevation adj vs the hs-lr. The zero stop is easy to use and functional/necessary. The turrets aren't too tall and have very tactile clicks. Direction arrows on the base of the turrets are nice too. A small fiber optic pipe on top of the elevation, at zero makes quick reference a breeze. They are relatively light at 20ish oz the overall length is not obnoxiously long either. You get lots of elevation adjustment with marked revolution indicators on the turret so you know how far you've gone with the ability to go right back to zero.
For me they beat the leupold on features and are every bit as clear to my eye. Personally I've seen lots of trouble with the leupolds. Just my own experience. I do like the leupold in that they are lighter and have a nicer profile (on comparible models) for hunting. Leupolds are good clear US scopes though and lots of people have good luck with them. At comparible price points the vortex has features that I prefer.
The eye relief on the vortex, for me is a little finicky but that's my own issue
I wish vortex would cull the HS-LR from the line up and offer the hs-t simply as a 50mm with reticle options to the consumer (VMR/dead-hold/etc). Also with the option to go to 1/2 MOA elevation and capped windage option. To me this would alleviate confusion and an overlapping line up. Just use one tube with a few design changes to have adaptive consumer options
A good option too is the Hs-lr with the dead hold reticle then you could have vortex install 1/4moa adjustments for $75
If you are interested in either I have a hs-t 4-16x44 and an hs-lr 4-16x50 bdc both MOA and both NIB. I'd make you a good deal on either or both.