I'll be the first to say, public transportation has never been my thing with the exception of the South Shore in and out of Chicago :)
The bus station in Malaga, Spain has been a lovely first experience for me. With several trips in and leaving, I've had time to be able to fairly look at the overall experience vs a one time trip.
The bus weaves through Malaga giving you time for a bit of window shopping (from inside the bus) on the way to the station. The bus we use, prefers exact coin change which is collected as one boards.
The bus station appears older and as I've found typical in Spain - it is clean and they clean frequently. The train station is also there.
Two public washrooms, one on each end of the building. For some reason, the cleaning team seems prefer clean the closest bathroom right during morning commuter peak and evening commuter out peak times, plan accordingly. Due to the heavy consistent traffic flow, do not expect a spotless bathroom, The hand air dryer was not functional (bathroom furthest back) when I have used it. The front washroom has never been open - constantly being cleaned - each time I have been there morning and evening.
There are several little mom and pop places selling food, drinks, ice cream, one also sold hotdogs. Prices are higher than at grocery store as is expected. Staff has been friendly. One was changing a phone card for someone and accepted our coins so we wouldn't have to wait.
Waiting outside there are benches with a roof overhead. Clean enough for me to still allot 5 stars.
Buses have numbered slots to pull in and signage with bus arrivals/departures is prominently posted outside by benches.
Bonus - dining, cig shop, wonderful malls, ATMs all a quick crosswalk, maybe two. read more