The Costco location nearest to where we live is a 4.5-hour drive away, if none of the high stretches have snow on them. We get to it once, sometimes twice a year. Partly because of that distance, but also because in general we like to shop closer to home and support local business. Also, we provide a lot of fruit & vegetables on our home place.
When the two of us are in Costco, I like to have a list of needed things, go as straight as possible for those, and get the task done. I do not enjoy being in Costco.
DW says she doesn't enjoy it either, but she has a different mode no mater what place we shop in together. she's slower and more placid about it. I suppose she may thereby be more thorough during her wandering and looking... you never know what could actually be good to acquire. However, I'm inclined to be considerably more sympathetic in my appraisal of her style with regards to
other retail outlets. In short, Costco is a bit of an ordeal for me.

On 'the scale' I'd rate it a 2, if that.