3D View is in lower resolution, because of upload limits of the service provider. The actual model is a lot more detailed. Please use the top right AR button for an immersive experience with your actual models (only works on mobile devices). You can place this building on your gaming table and see how it integrates with your existing terrain. The 3D model is correctly scaled and give a good impression of how it’ll look like, once you printed and assembled it.
Like always, remember to dry fit and maybe sand down the parts before glueing them in place. Check the flooring part for warping and heat and bend straight if necessary. Dryfit all the stairs to the flooring and and glue in place, once you’re happy.