It's quite nice too but I have seen nicer ones in Spain.
Jardín Botanic Marimurtra in Blanes is awesome. The one in Madrid is quite cool too.

The one in Edinburgh is super nice too with lovely glass houses with various climates such as tropical, desert etc. London's Key Gardens is great too. They have really nice tropical rainforest Victorian glass house there.
I like the one in Lepizig. It is tiny and not that much to see around but they have great tropical glass house that has a room with hundreds of butterflies flying around.