Overall, I like the 8th expansion "Burgen, Brücken und Basare".
In particular I like the bridges. Although they don't look very shiny at first, they blend in after a while. I like the possibility to expand fields, and furthermore the fact that you can place a follower on top of it.
Next, the Forts. I like the idea, but when playing with only a few expansions, "Fort chains" form rapidly. The disadvantage is the vagueness about the removal of followers when playing with the Towers or Dragon (although I just read that the Finish version defines this matter clearer).
Finally, the Bazaars. They are a disaster, after playing two Bazaars we all said, ** them, let's just use them as normal tiles. I cannot imagine the creators of this expansion tested it very thoroughly (just enough to provide an alternative for playing these tiles).
Some other points: I don't like the artwork of the Bazaars that much. I mean, the people are as tall as the houses? And every bazaar is the same, even in the city they have a yellowish patch of earth around them? I do like the use of Inns along some of the roads.
As for Kornkreise, I haven't played it yet because I don't own the expansion yet
. I considered to buy a new Carcassonne Basic game with the 6 new tiles included, but it would cost just too much with the shippingcosts. I think I will either wait for the HiG mini-expansion or for the RG one, although I already own the Tunnel expansion.