Sliced with Slic3r
Layer is 200 microns
Print speed 20 mm per second
Had some issues with thin top layer infill. Probable because of under-extrusion.
The chimney was really weird... don't know why yet.
Thanks for sharing the images. The issues with the chimney can be caused by very slow speeds resulting in the extruder motor reaching the limits of its lowest speed. Try printing again with higher speeds.