Spaced repetition is a terrific approach for supporting rote learning over the longer term. It makes the difference between cramming tonight for a test tomorrow but forgetting everything by the day after and getting those times tables facts firmly cemented into our heads for longer term retention.
As great as this technique is however, we are still faced with the question of whether or not we should be treating the times tables as a grid of number facts as opposed to developing a multiplication skill. Remember however, that skill too benefits from being practised repeatedly over time, and we can all become rusty when we neglect to do so.
One of the problems with most method-based approaches to the times tables is that each method (e.g. the 'fingers' method for the nines) is that each individual method solves part of the overall table of multiplication problems, but that the rest of the table needs to be covered by other individual methods. A fully comprehensive approach, however, addresses the times tables entirely, without leaving any gaps.