I´ve eaten at Thai Gardens (as they are known here) too many times to count. They have a great value menu of the day at 15euro: spring rolls, red or green curry (not too spicy sadly;) and fruit for dessert. Includes a 25cl bottle of estrella or wine. But my advice is save up and go a la carte! The menu includes a veggie section, and its clear what is, and isn´t vegan. For true Thai flavours I´d rec the Som Tam (green papaya salad), Yum hua Pli (banana flower salad, my fave), Tofu sate, Tom yam hed (spicy mushroom soup), and the Pad Kaprdaw tofu, stir fried with 3 thai basils and green pepper. It´s fresh as. Don´t for get the rice! This is a seriously good place, but don´t go for the red/green curries! For 4 people works out at about 25euro including a few drinks. Share food and save money! And get them to send it all at once, you´ll get more food. ;) Enjoy!
Cons: Um., Er., It´s worth it!