Cool filters!
I like the fact you can make personalized post cards of the trips, but I dont like how you have to pay for the printing and there is no way around it. However the effects are great and I would continue to use just to edit my pictures. Perhaps an improvement would be to edit pictures more before printing with things other than filters to make the post card even more outstanding.
Aerophyi about
Stannp Postcards, v3.2.0