Is a 2-slice or 4-slice toaster better?

It depends on household size. Across verified-purchase reviewers, 2-slice models like the Keenstone are favored by smaller households and tighter counters, while 4-slice units such as the BLACK+DECKER and Elite Gourmet long-slot are preferred by families and anyone toasting in batches. A 4-slice unit gives flexibility but takes more counter space.