I am not a graphic artist and I have never used any DTP program. In fact I am a retired physician. We a going to have a lecture by a visiting scientist from the U.K. here in the western U.S.A. so we needed an advertising poster.
I downloaded AP one evening and watched several tutorial films, then the same evening I composed an advertising poster ( it isn't professional) and saved it as a PDF file.
That same evening I sent it to the scientist in the U.K. and later that same evening he emailed me and said that the poster was O.K.
I am sure that Serif will do much in the future to improve this DTP program, but I am ecstatic with this program now.