That is a big problem with it though, it has very slow start up time, then at the end grinding is a joke, it is the complete reverse what progress is.
For example, lets say it takes someone 9 days, 2 hrs per day to get level 20, then 1 day to farm
What it should be is get max level in 1.5-2 days then farming for the relics 7.5-8 days.
Even though the total time is the same, situation 2 will appeal to more people then situation 1. You shouldn't be presenting players a mountain to start off with (Come to think of it i learned such analogy on the Japanese forum) It is not good to give players a mountain to climb to start off on. I have seen NO GAME be it main (like FFXI leveling) or sub event (side content like it is in ffxiv) that does this. That is why a lot of people are turned off by it, HELL even music has rules like this:
https://youtu.be/2lQVG7Gf7I4?t=342
This is a major turn off because you are presenting too much of a grind at the start, you need to introduce a small bit at a time, in all the games I played in everything I seen, this is the first time I seen a problem like this.