I started in a bathroom darkroom about 18 months ago, worked well-ish. I had board over the bath, enlarger on the left hand side then 3 trays on the right, nice workflow from enlarger to trays (i'm right handed), final tray was in the bath for washing. the main prob was (apart from insistant knocking from my just pregnant g/f) was being scrunched up over the bath. now I have a setup in the garage (not that I have been in there since my little man was born) with proper sides at waist height, extractor fan and separate wet/dry counters.