I deleted Picsel ProViewer about 5 days into the trial, having used it for about 2 or 3 days.
Besides the "issues" I listed above, it didn't display .pdf files as well as PalmPDF (the nice picture of my camera on the cover page of the manual was a blank square in ProViewer, but it was a nice picture of my camera with PalmPDF, for one thing), it doesn't open photos (.jpg or .bmp) nearly as quickly as AcidImage Basic or VFSi, and I already have Docs to Go (from my Tungsten E), CardTXT, SiEd, and txtMemo for Word docs, Excel spreadsheets, and text files.