What problems does the Canon TS3722 have?

The documented list: slow printing, low page yield making it uncompetitive per RTINGS (though with better-than-class color accuracy), and recurring ink-consumption complaints. Walmart buyers are mostly satisfied; heavy users outgrow it fast.

Is the Canon TS3722 worth it?

At around $34 for light home printing, workable — praised as compact with decent print quality for the price and convenient phone-based wireless printing. The costs: slow (42 seconds for 5 pages), 18.4 cents per page, and text quality trailing most printers per Consumer Reports.