The best thing about this tool was how simple it made creating catalogs for my clients that were easy enough so they could use them themselves without needing constant input from me or another designer! I can honestly say there's nothing bad at all when using Dcatalog as far as functionality goes (aside maybe some of their templates being too detailed-looking).
It did take time getting used with but once you get comfortable everything flows quite well together. They have great support staff who are always ready to help out if needed/asked which makes things even easier! We've created several different types of products such as books, magazines & catalogues over multiple years now through working closely with these guys!!