I do too. I found it helpful to look for a shop I don't like before going in the castle to see the level up. Or just replace a shop with the same name if it has more stars. Like if they are both trick houses.
Me too, the names throw me off. I had to run around and personally go to the shops to know what the hell they actually did. Now, I got an idea, so running around at first helped.
Yeah, the shops are confusing. Did you know there are three different kinds of lottery shops? One is for money, one is for different pokeballs, and one is for bottle caps? Not quite sure what the bottle cap one does but it is funny to have three lottery shops so I kept it.
Also, does anyone know if there is a dye shop for purple or is it just the berry dye option under blue?