It's Persona 3, but with reworked compositions - what's not to love? The new voice cast will take a while to get used to for veterans, but honestly, I think they're better in the grand scheme of things.
It has the sultry, swaggering style of Persona 5, but somehow looks even better. Persona 3 Reload is basically anime come to life!
Persona 3 Reload plays like Persona 4 using the Persona 5 engine. What's not to love about that?
One of the biggest criticisms of Persona 3 (and it's spin-offs) was that Tartarus was an immense grind. While Tartarus in Persona 3 Reload has the same number of floors, you can breeze through them in a fraction of the time.
A good variety of trophies, on the whole, that encourage exploration and allow you to drill deep into the best aspects of a freshly-made classic.