I'll give you my long-winded two cents worth and hopefully it will help. I’ve learned a lot from this site so I’ll pass along what little valid experience I have.
I recently “personally” installed about 8,000 feet of cable on a commercial property that I own (yes, a little over 1.5 miles of cable). I used Ubiquiti ToughCable Pro
Cat5e.
I ran the cable around the perimeter on a fence so I didn't see a need to buy direct burial cable. If I were going to bury it, I probably would use Shireen Gel Filled based on recommendations that I've seen on this site.
I have no prior experience with either cable but I do believe that shielded cable is a must for long outdoor runs. I also ran an extra run to the longest points as a backup or for possible future expansion. I will be using some of the cables to power and control long range infrared photo beams.
All of the cables originate from a single point and I used rack mounted L-Com Cat5 Lightning Surge protector panels at that point.
My two longest runs are about 900 feet and many are over 500 feet. I bought Dahua cameras from Andy and like everyone else, they arrived quickly! I bought a combination of cameras based on my plan, IPC-HFW5231R-ZE and IPC-HFW5231-Z5E.
I also bought a Dahua
NVR5216-16P-4KS2E. I may upgrade to an ePoE switch and
Blue Iris at some point.
So far everything that I have installed is working as planned but they’ve only been operational for about a week. I still have three more cameras to install and 8 photo beams. I’m cautiously optimistic that everything will work. Although I’m not looking forward to aligning photo beams at distances of about 600 feet.
There does appear to be a bug with Dahua ePoE NVR when reporting the link quality status of the ePoE ports. Only one port can have a link quality of Good and the remaining 7 ePoE ports will always show as Poor. It doesn’t matter if the cables feeding the cameras are a 3 feet patch cord, it will still report the link quality as Poor. I turned on the Enhanced PoE for the long runs but found that there was no difference in performance or link quality status reporting. I find it strange but according to the NVR, all of my runs operate correctly on normal PoE, even the 900 foot runs.
I will attest to the fact that running cables, climbing poles, mounting junction boxes and terminating shielded ToughCable connectors on ladders is a bitch and the guys who do it earn their pay … unfortunately, I didn’t have the money in the budget to pay a company to install the system.