"These toilets are available until 18:00"
that's a good sign...
First off, Chester station has two sets of toilets. One set in the buildings on platforms 4-7, the other set are on the main concourse just inside the station. Therefore, you need a ticket to get through the barriers to the ones I'm about to talk about. Just so you know.
First off, as you enter the corridor (i.e. Where you choose your gender-specific door) the smell is horrendous. This is really weird when the smell is completely gone when you enter the gents, and everyone knows girls don't poo, right? Anyway, the room is very small and cramped, where you almost have to contort yourself around the corner to the single cubicle. Interestingly, it seemed to have been recently cleaned, or perhaps a better class of people use this toilet (considering you need a ticket to access it) as the seat was dry and the water was clear! A rarity with public loos. Of course, I could be lucky, but it left a good impression. Flushing is a push button which is rather odd. Beware however, as when I visited there was no soap available, which you would think "oh they'll refill it", but on both times I've visited this particular loo in the past, there hasn't been any. I'm guessing it runs out part-way through the day and nobody refills it.
Oh, and one last thing: this graffiti amused me, namely the last line at the bottom (WARNING: strong language ahead) click here for picture
Points lost for only one cubicle and repeated lack of soap. I would deduct points for the smell, but that's in the corridor on approach, but I will deduct points for only being open part-time.
Final mark: 6/10