This is the SD1.5 version. I think the SDXL version is vastly superior, but I know a lot of people are still using 1.5.
As usual, I suggest using the SDXL version over this.
I find that I get the best results out this version with much higher step counts. I typically only do 25 steps in SDXL, but with this I need at least 50 steps.
Your mileage may vary.