The house I moved in last year, had the shower stall located next to the electrical panel (the only separation was a sliding mirror doors), a similar situation like this.
Upon a closer inspection, the panel was NEW, and probably was replaced within 2 years. Some original hardware pieces left behind were rusted, to tell you about the state of the old panel after repeated exposure to humidity.
Needless to say, we opted to renovate the bathroom and separate the 2 'entities' by a solid wall.
The shower stall, which was defined by the renovation contractor as a Sunday job, had other electrical problems (like a light switch too close to the shower stall, etc).
