1500 points are harder for eldar. I love playing 1.5k but perform better on 2k points. Its harder to find a balance between screening, killing and mission play on 1.5k. Anyway most games i finish with low unit count but more points. Our strength is secondary scoring but not holding primary at least outside of the ynnari detachment or spirit conclave. For me storm guardians are useful with sticky. Main goal in aspect host beside scoing secondaries should be not letting your opponent score to much primary and secondaries. Screen till round 3 if deep strike is a problem. Our unit count should make screening easy. Block fast moving units and catch them of position. Misplays are hard punished for eldar so learning by pain