Alright, time for more updates over at https://pixeldojo.ai.
I added a new high dynamic range slider that adds more vibrant colors to washed out images, a sharpen feature that runs a sharpener after the image is upscaled (defaults to off), increased the max upscale to 8X (takes a LONG time), and finally increased the range for the resemblance from 0-1 to 0-3.
For those of you doing interior renderings (cough, cough), setting a low creativity and high resemblance should retain the original textures better. If that works i'll add some default setting drop downs with ideal settings pre selected for you.