IMO I think real is the way to go, helps with humidity, looks great, and the frogs love it. I've got live plants and the silk vine bridge is spanning the top of the tank but is only use it for shade where it's pinned to the rock wall.

I find real plants no real effort to keep, cos you spend so much time looking after the tanks condition, the plants become part of the routine. Although when setting up a live plant terrarium a bit more planning had to be used i.e. Drainage layer, etc.