Showers in Class B motorhomes?

Are there any Bs that have a side wet bath, rather than an aisle shower? I find it very difficult to tell from photos.

In the case of the aisle shower.... how much of a pain is it to use? Can you manage a shower without getting everything around wet? Is the shower curtain area big enough for an XL size person?

Seems to me that if the aisle shower is in use, any other person around has to stay either in the back or the front, no getting through. Is this correct?

I really really dislike hiking to a campground shower, even if it's super nice and sparkling clean. I like the looks of many Bs I've seen. Just not sure if I'll be able to get happy with an aisle shower.