I have a 2017 SL crew with the towing package that I bought new in May of 2018, for about 32% off the sticker price but that included a college grad rebate for my daughter so figure without that about 30%. No other manufacturer could touch giving me such features for that money.
I am not brand specific but tend towards Fords as I bought one new in 1990 that I kept for ten years before selling it for about half of what I paid for it. However, I couldn't touch a Ford with the same features near the Titan's price. Chevy/GMC were giving deep discounts, but not Titan deep, on their outgoing (at that time) models. Those models didn't offer blind spot monitoring, rear air ducts, and the 5.3 on paper was less of an engine (reliability wise maybe not if the cylinder scoring with the Titan's 5.7 Endurance becomes widespread).
I love the truck. As stated the seats are beyond comfortable. I find the handling to be excellent: enough truck feel tempered by excellent handling. The 5.7 with the direct injection, VVEL, and MCV (always open throttle valve) is a rocket to me so much so that it's off the line response took some adjusting to. Some reviewers dislike the interior; I like it. It's simple and high end enough for me. Some don't like the column shift, but I cut my teeth on two old Ford's with three on the tree so that's not an issue to me. Although I will say that I'm not fond of how the selector feels like it has to much play. My 7 inch screen (bigger on the new ones) seems small and graphically behind the eight inch one on my 2014 Taurus, but it's sufficient and includes navigation which is responsive and useful. I bought it to tow a 6,000 to 7,000 pound camper, but don't have that yet and haven't towed with it so can't comment on that.
My company car is a 2018 Chevy Tahoe with the 5.3. The Titan is much funner to drive, but it's also more decked out as the Tahoe is more base. I don't know if they tuned the Tahoe for gas mileage or it's inherent to the 5.3, but it always seems to bog down when I hit the accelerator before coming to life. I like the Tahoe, but I much prefer the acceleration and handling of the Titan.
I thinks choosing the Titan depends on what your looking for and personal choice. If you don't mind dealing, then you should land up with a truck that will be substantially cheaper (feature for feature) than the competition. If you need a half ton that tows around 10,000 pounds, you may be best looking somewhere else. If you want the truck with the smoothest ride and nicest interior, you may want to take a good look at the RAM. If resale is important or soon, the Ford and/or Chevy may be the way to go. If you live in the rust belt like I do, an aluminum body may interest you. If you live where a Nissan dealer is miles away, a domestic might be the choice as their dealers are everywhere. If your looking for an automatic setting for all/four wheel drive, Nissan doesn't have it. The others do.
However, if you want a truck that comfortable, fun to drive, has an excellent V-8 (again barring cylinder scoring issues), and has the longest warranty for what today's truck prices demand at a reasonable (probably the cheapest) price, then a Titan should be in serious contention.
Good luck on the choice.