I've been using a Titan DX for about 10 years now with great success. I'm on a hill overlooking Monterey Bay in California and can easily work just about anyone I hear. There have only been a few issues you might want to consider.
I am running a TS950SDX with a TL922 1 KW amp. When I first started using the amp, I was having problems with RF in the shack. The cure was to put 10 or so ferrite beads on the feed line just below the Titan. Mine sits about 50 feet from the house and about 100 feet from the shack. I'm using 9913 coax with the first 50 feet buried about 12 inches in the ground and run through plastic conduit. The ferrites cured the RF problems. I also grounded the coax where it comes out of the ground next to the house as well as where it enters the shack.
The only other problem I've had is with screws and nuts working loose. When I put the antenna together, I used anti-corrosion compound on all of the joints and screw heads so corrosion has not been a problem. It is mounted on 1 1/4" water pipe about 10 feet above ground because I had problems with the deer trampling the counterpoise. Once I got it into the air, the deer couldn't get to it and I've had no problems. I take it down about once a year or so and check the screws and connections to insure they are clean and tight. I am using a tilt over arrangement which makes it easy to maintain.
If you have the equipment, it is interesting to watch the SWR/Return loss shift when the antenna is swaying in the wind. Mine is not guyed, although recommended by GAP, and sways quite a bit when the wind starts gusting over 25 MPH or so.
All in all, I’m satisfied with the antenna and would buy another one if something ever happens to this one- like real tall deer running over it or the gophers tunneling under it and toppling the beast.
Hope this helps,
Dave, WA4OBJ