Good communication with the host as well as check-in and check-out. Location - walkable to the city center, otherwise you may take a public transport. Bed was very comfy, but apartment was quite cold and mainly bathroom wasn't clean enough, especially shower (where shower curtain doesn't fit so after having shower you have wet half floor of the bathroom).
In overal, the aparment was good, not the best we had though, to be honest with other hosts we had.