From a pure architectural point of view probably the temples most worth visiting in Chengdu. I really like the reconstruction work of the roofs with good eye for detail and and to top it the little figurines. Historically it's worth a look if you were under the impression that Taoism is a peace-loving ideology - almost every statue carries a sword and as such also a reference point for local martial arts.
There is a teahouse which offers vegetarian lunch but with a C rating in hygiene I wouldnt be all that tempted. There are more teahouses in the bigger and adjacent Wenhua Park which is free to visit.
All in all worth the 10 kuai entrance, and wouldn't mind to come back