Ok, I went to the Coach and Horses pub. The food is actually served in the Teahouse upstairs, which you reach via a flight of stairs behind the bar, so it looks at first glance like the stairs are for staff only.
The Teahouse is all kitted out like a 1940s cafe (if Emm7 still posted on here she'd love it) complete with cake stands, embroidered tablecloths and a chunky clock on the mantelpiece. Literally everything, even the serving staff, look like they're stuck in a time-warp. It's worth going just for this novelty (though vegan nerds should note that the cake stands are almost certainly bone china).
Onto the food. The menu is based around one price for two courses (£14 I think) and a higher price for three courses, so I ignored the starters and opted for main course and pudding (dessert, to Southerners), plus a pint of Staropramen beer (they also have Leffe). There's a wine list, but I don't know whether it's all veggie as I don't drink wine.
My vegan fish (tofu and seaweed, battered) was lovely, as were the minted peas. The chips were bog-standard ones out of a packet. For this price, I would expect chunky, hand-cut chips, so I mark them down for this.
The only vegan dessert was a lime flan with a scoop of ice cream. The waitress informed us that the vegan ice cream flavour was rose and banana, which sounded awesome, but they didn't have any, so she suggested serving the flan with strawberries and blueberries. The fruit looked lovely on the plate, but I was disappointed that I couldn't have ice cream, as the flan was a little dry without any kind of sauce or ice cream to balance the texture out. It was gorgeous though, especially the strands of sugared lime rind garnish on top, that I could have eaten a whole dish of. Top marks for the flan.
Food - 8/10
Service 9/10 (nothing was too much trouble for the smiling waitress)
Value for money 6/10 (they lost a point on the chips)
Vegan-reliability 5/10 (must try harder - why should we pay the same as everyone else, but get less?)