Hi, I just found this forum after Googling 'clothes steamer'. So a bit late joining but anyway to answer the origonal question....
In my opinion the Propress MINI is great for travelling. I've had mine now for over a year and have taken on holidays. It's small enough to go in your travel bag and doesn't need an ironing board, just a hanger on the door will do the job. And presto you can uncrease all your clothes after checking in.