First impressions: A competitive election keeps turn-out relatively high (compare Hesse and Lower Saxony).
Points of note about Hesse – Roland Koch less sympathetic than Andrea Ypsilanti, Koch strong on “hard policies” (economy, crime) – Ypsilanti on “soft policies” (education, social justice). Voters had “soft policies” – especially education – as priority.
As of 19:15 nothing is really decided in Hesse – Die Linke may or may not be in the Landtag.
References: Election broadcast on Deutschlandfunk, data from Heute and Tagesschau.