Let me get the negative out of the way first: The tuckbox. It's much too busy for my taste, with all the pips on, the title and subtitles and ninja logo. I think it could've benefited a lot from simplifying design by removing just one or two elements from it.
The cards themselves though have a fantastic design for cardistry. Lots of lines with various thicknesses emerge when fanning, cascading and spreading the cards, which makes it a joy to look at. I love the anonymous look of the court cards which fit well with the ninja theme. Their design is clean and classy (unlike the tuckbox.. :p)
The card's are printed by USPCC, so no surprises in that department.
Overall I recommend this deck if you're a cardist because Handlordz put such a high emphasis and effort on creating unique and beautiful looking patterns for cardistry.