UPDATE:
1) Searing Arrows is back in the meta and now it provides 50% damage bonus for 5 seconds with 25s of cooldown
2) At level 1 you can choose between Seasoned Marksman if you have time to soak exp or Ranger's Mark if you want to be more aggressive early-game, in combo with the new Searing Arrows is DEVASTATING

BASIC ROTATION: Lunar Flare > Ranger's Mark > Searing Arrows > Auto Attacks ( Owl Sentinel as filler)

PROs
+ Searing Arrows is back!
+ AMAZING 60% Attack speed bonus combo with Huntress' Fury + Nexus Frenzy at level 20, she can reach 2.00 atk/s
+ Her basic healing has been buffed, so she has a decent healing even with a DPS build
+ Good mana management with an auto-attack build
+ Nexus Frenzy gives you good range to avoid deaths

CONs
+ Squishy
+ Low damage in early game
+ You need good accuracy and timing to land Sentinel and Lunar Flare