I recently purchased a BH Emotion Deluxe from Otero bikes for 1.799€.
I was in their physical shop, and they made a meeting between BH sales guy and me to explain me in detail the difference between the Agattu (I was nearly convinced to purchase this previously) and BH Emotion.
He told me that the previous PANASONIC electric kit BH was using was less powerful than the current one. The current one is exactly the same as Kalkhoff, Helkama and other brands. So, for the less price I purchased the same PAS as Kalkhoff.
Currently, after one month using it, I am 100% satisfied. One of my friends already owned the Agattu, and sincerely speaking, there are not differences between both bikes, except the price.
The only pity is that I should have waited little time more to purchase the bike. The seller of the shop told me that BH has developed a new catalog of 10 models including an electric road bike and a MTB. I am still in process of negotiating with him, because I prefer to change it by another model. Let's see if finally I can get it.