It's good if you don't mind storylines based on the era right before WWII (they speak of an "upcoming war in Germany" a lot, and it takes place in the years 1935-1937). You can watch the entire first series (Meine Liebe, not Meine Liebe Wieder) on Youtube, unless if Google took those down. v.v;
I think when I checked, Episode 1 of Wieder was missing on Youtube. Dx;
Personally, I think it would be more enjoyable if you played the actual dating sim game before you start watching the series. Both my friend and I did and we found ourselves extremely attached to the characters since we spent about a week trying to date them prior to watching the series. xD Another friend of mine tried to watch it without playing the game and got pretty bored of it (A lot of it is about politics and their lives).
You can get the Emulated Game from here:
http://www.dgemu.com/gba.htmlBut you'll need a GBA Emulator to play it (duh xD).
And this site is the only site that has a "walkthrough" for the game, should you need one:
http://kagami.mnm-scanlations.com/guide/mlguide.html