The short answer: YES! Absolutely.
- Beautiful, unique physical design with the unibody polycarbonate. It stands out from the crowd. It's not your generic round corner iPhone clone design.
- Flawless display, and the sunlight readability is second to none. My AMOLED Samsung ATIV S was extremely difficult to view outdoors on a sunny day. The 1520's display with the sunlight readability feature really works well.
- Although somewhat overwhelmingly large at first experience, you quickly get spoiled by that 6" display and can never go back to something smaller.
- The large battery provided unprecedented battery life at the time, and still holds up well today. I still routinely get 1.5 to 2 days between charges. Back at the start of the New Year, I had to disable all background tasks for a period of time when "Restore Data" was running wild on my phone, and the battery life was even better.
- The Snapdragon 800 is a non-issue unless you obsess with CPU specs. My old ATIV S delivers just as smooth of an experience with Windows Phone 8.1.
- The only weakness of the Lumia 1520 is the f2.4 camera. It gets pretty grainy in low light. I believe that Nokia went with f2.4 to improve daylight sharpness (remember Lumia 920 owners complaining about f2.0 softness), but if the 1520 had an f2.0 lens, this phone would be flawless.
This phone is now 3 years old, and can still go toe to toe against any phone from 2016 / 2017 in terms of user experience (performance), camera (other than low light), and battery life.
I love my Lumia 1520, and as I've said in other posts here, "..from my cold, dead hands!" I will keep using my Lumia 1520 with Windows Phone 8.1 for as long as it continues to last. There is nothing else on the market that I'd rather have.
Counterpoint:
- The number of people with "Phantom touch" issues.
- Poor availability: Never released in Canada, etc. Although I'm glad to have got my hands on one up here in the Great White North.