About this 3D model

I took Disrespective's large file for the sydney opera house but I couldn't slice it very well as it had lots of internal faces that confused the slicers I tried. So I removed *most* of the internal walls using meshlab. I got a few extra removed hidden under the overhangs but it came out quite good anyway. This version sliced okay in cura 13.11 with the 3 lower "fix horrible" checkboxes checked. Printed using LayBrick at 177C .2mm layers .65mm nozzle 50mm/sec