I liked Keima's voice actor too. Elsee (I hated the CR spelling) was so-so.
I agree it felt rushed. Seeing it was based on a 60+ pages chapter they could have easily done it in two episodes.
I disliked the small changes done from the manga though. Making Ayumi look like a wall-crashing ditz for instance... but most importantly how the significance of the last scene changed. Ayumi herself should have boasted her win at Keima only to wonder a second later why she was doing it.
Ah yes... I hate the 'dweeb' name instead of Otomegane. I know the word doesn't exist in english... but dweeb sucks. I expect a decent group to pick this up and fixes 'dweeb' and 'Elci'...if so I'll redownload.